CVE-2019-13377

The implementations of SAE and EAP-pwd in hostapd and wpa_supplicant 2.x through 2.8 are vulnerable to side-channel attacks as a result of observable timing differences and cache access patterns when Brainpool curves are used. An attacker may be able to gain leaked information from a side-channel attack that can be used for full password recovery.

The implementations of SAE and EAP-pwd in hostapd and wpa_supplicant 2.x through 2.8 are vulnerable to side-channel attacks as a result of observable timing differences and cache access patterns when Brainpool curves are used. An attacker may be able to gain leaked information from a side-channel attack that can be used for full password recovery.

wpa_supplicant is a WPA Supplicant for Linux, BSD, Mac OS X, and Windows with support for WPA and WPA2 (IEEE 802.11i / RSN). It is suitable for both desktop/laptop computers and embedded systems. Supplicant is the IEEE 802.1X/WPA component that is used in the client stations. It implements key negotiation with a WPA Authenticator and it controls the roaming and IEEE 802.11 authentication/association of the wlan driver.\r\n\r\n Security Fix(es):\r\n\r\n The implementations of SAE and EAP-pwd in hostapd and wpa_supplicant 2.x through 2.8 are vulnerable to side-channel attacks as a result of observable timing differences and cache access patterns when Brainpool curves are used. An attacker may be able to gain leaked information from a side-channel attack that can be used for full password recovery.(CVE-2019-13377)\r\n\r\n

The implementations of SAE and EAP-pwd in hostapd and wpa_supplicant 2.x through 2.8 are vulnerable to side-channel attacks as a result of observable timing differences and cache access patterns when Brainpool curves are used. An attacker may be able to gain leaked information from a side-channel attack that can be used for full password recovery.

A number of potential side channel attacks were discovered in the SAE implementations used by both hostapd (AP) and wpa_supplicant (infrastructure BSS station/mesh station). SAE (Simultaneous Authentication of Equals) is also known as WPA3-Personal. The discovered side channel attacks may be able to leak information about the used password based on observable timing differences and cache access patterns. This might result in full password recovery when combined with an offline dictionary attack and if the password is not strong enough to protect against dictionary attacks.

This update for wpa_supplicant fixes the following issues:

Security issue fixed:

• CVE-2019-16275: Fixed an AP mode PMF disconnection protection bypass (bsc#1150934).

Non-security issues fixed:

• Enable SAE support (jsc#SLE-14992).
• Limit P2P_DEVICE name to appropriate ifname size.
• Fix wicked wlan (bsc#1156920)
• Restore fi.epitest.hostap.WPASupplicant.service (bsc#1167331)
• With v2.9 fi.epitest.hostap.WPASupplicant.service is obsolete (bsc#1167331)
• Fix WLAN config on boot with wicked. (bsc#1166933)
• Update to 2.9 release:
  • SAE changes
    • disable use of groups using Brainpool curves
    • improved protection against side channel attacks [https://w1.fi/security/2019-6/]
  • EAP-pwd changes
    • disable use of groups using Brainpool curves
    • allow the set of groups to be configured (eap_pwd_groups)
    • improved protection against side channel attacks [https://w1.fi/security/2019-6/]
  • fixed FT-EAP initial mobility domain association using PMKSA caching (disabled by default for backwards compatibility; can be enabled with ft_eap_pmksa_caching=1)
  • fixed a regression in OpenSSL 1.1+ engine loading
  • added validation of RSNE in (Re)Association Response frames
  • fixed DPP bootstrapping URI parser of channel list
  • extended EAP-SIM/AKA fast re-authentication to allow use with FILS
  • extended ca_cert_blob to support PEM format
  • improved robustness of P2P Action frame scheduling
  • added support for EAP-SIM/AKA using anonymous@realm identity
  • fixed Hotspot 2.0 credential selection based on roaming consortium to ignore credentials without a specific EAP method
  • added experimental support for EAP-TEAP peer (RFC 7170)
  • added experimental support for EAP-TLS peer with TLS v1.3
  • fixed a regression in WMM parameter configuration for a TDLS peer
  • fixed a regression in operation with drivers that offload 802.1X 4-way handshake
  • fixed an ECDH operation corner case with OpenSSL
  • SAE changes
    • added support for SAE Password Identifier
    • changed default configuration to enable only groups 19, 20, 21 (i.e., disable groups 25 and 26) and disable all unsuitable groups completely based on REVmd changes
    • do not regenerate PWE unnecessarily when the AP uses the anti-clogging token mechanisms
    • fixed some association cases where both SAE and FT-SAE were enabled on both the station and the selected AP
    • started to prefer FT-SAE over SAE AKM if both are enabled
    • started to prefer FT-SAE over FT-PSK if both are enabled
    • fixed FT-SAE when SAE PMKSA caching is used
    • reject use of unsuitable groups based on new implementation guidance in REVmd (allow only FFC groups with prime >= 3072 bits and ECC groups with prime >= 256)
    • minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-1/] (CVE-2019-9494, bsc#1131868)
  • EAP-pwd changes
    • minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-2/] (CVE-2019-9495, bsc#1131870)
    • verify server scalar/element [https://w1.fi/security/2019-4/] (CVE-2019-9497, CVE-2019-9498, CVE-2019-9499, bsc#1131874, bsc#1131872, bsc#1131871, bsc#1131644)
    • fix message reassembly issue with unexpected fragment [https://w1.fi/security/2019-5/] (CVE-2019-11555, bsc#1133640)
    • enforce rand,mask generation rules more strictly
    • fix a memory leak in PWE derivation
    • disallow ECC groups with a prime under 256 bits (groups 25, 26, and 27)
    • SAE/EAP-pwd side-channel attack update [https://w1.fi/security/2019-6/] (CVE-2019-13377, bsc#1144443)
  • fixed CONFIG_IEEE80211R=y (FT) build without CONFIG_FILS=y
  • Hotspot 2.0 changes
    • do not indicate release number that is higher than the one AP supports
    • added support for release number 3
    • enable PMF automatically for…

This update for wpa_supplicant fixes the following issues:

Security issue fixed:

• CVE-2019-16275: Fixed an AP mode PMF disconnection protection bypass (bsc#1150934).

Non-security issues fixed:

• Enable SAE support (jsc#SLE-14992).
• Limit P2P_DEVICE name to appropriate ifname size.
• Fix wicked wlan (bsc#1156920)
• Restore fi.epitest.hostap.WPASupplicant.service (bsc#1167331)
• With v2.9 fi.epitest.hostap.WPASupplicant.service is obsolete (bsc#1167331)
• Fix WLAN config on boot with wicked. (bsc#1166933)
• Update to 2.9 release:
  • SAE changes
    • disable use of groups using Brainpool curves
    • improved protection against side channel attacks [https://w1.fi/security/2019-6/]
  • EAP-pwd changes
    • disable use of groups using Brainpool curves
    • allow the set of groups to be configured (eap_pwd_groups)
    • improved protection against side channel attacks [https://w1.fi/security/2019-6/]
  • fixed FT-EAP initial mobility domain association using PMKSA caching (disabled by default for backwards compatibility; can be enabled with ft_eap_pmksa_caching=1)
  • fixed a regression in OpenSSL 1.1+ engine loading
  • added validation of RSNE in (Re)Association Response frames
  • fixed DPP bootstrapping URI parser of channel list
  • extended EAP-SIM/AKA fast re-authentication to allow use with FILS
  • extended ca_cert_blob to support PEM format
  • improved robustness of P2P Action frame scheduling
  • added support for EAP-SIM/AKA using anonymous@realm identity
  • fixed Hotspot 2.0 credential selection based on roaming consortium to ignore credentials without a specific EAP method
  • added experimental support for EAP-TEAP peer (RFC 7170)
  • added experimental support for EAP-TLS peer with TLS v1.3
  • fixed a regression in WMM parameter configuration for a TDLS peer
  • fixed a regression in operation with drivers that offload 802.1X 4-way handshake
  • fixed an ECDH operation corner case with OpenSSL
  • SAE changes
    • added support for SAE Password Identifier
    • changed default configuration to enable only groups 19, 20, 21 (i.e., disable groups 25 and 26) and disable all unsuitable groups completely based on REVmd changes
    • do not regenerate PWE unnecessarily when the AP uses the anti-clogging token mechanisms
    • fixed some association cases where both SAE and FT-SAE were enabled on both the station and the selected AP
    • started to prefer FT-SAE over SAE AKM if both are enabled
    • started to prefer FT-SAE over FT-PSK if both are enabled
    • fixed FT-SAE when SAE PMKSA caching is used
    • reject use of unsuitable groups based on new implementation guidance in REVmd (allow only FFC groups with prime >= 3072 bits and ECC groups with prime >= 256)
    • minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-1/] (CVE-2019-9494, bsc#1131868)
  • EAP-pwd changes
    • minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-2/] (CVE-2019-9495, bsc#1131870)
    • verify server scalar/element [https://w1.fi/security/2019-4/] (CVE-2019-9497, CVE-2019-9498, CVE-2019-9499, bsc#1131874, bsc#1131872, bsc#1131871, bsc#1131644)
    • fix message reassembly issue with unexpected fragment [https://w1.fi/security/2019-5/] (CVE-2019-11555, bsc#1133640)
    • enforce rand,mask generation rules more strictly
    • fix a memory leak in PWE derivation
    • disallow ECC groups with a prime under 256 bits (groups 25, 26, and 27)
    • SAE/EAP-pwd side-channel attack update [https://w1.fi/security/2019-6/] (CVE-2019-13377, bsc#1144443)
  • fixed CONFIG_IEEE80211R=y (FT) build without CONFIG_FILS=y
  • Hotspot 2.0 changes
    • do not indicate release number that is higher than the one AP supports
    • added support for release number 3
    • enable PMF automatically for…

These are all security issues fixed in the wpa_supplicant-2.9-13.4 package on the GA media of openSUSE Tumbleweed.

This update for wpa_supplicant fixes the following issues:

Security issue fixed:

• CVE-2019-16275: Fixed an AP mode PMF disconnection protection bypass (bsc#1150934).

Non-security issues fixed:

• Enable SAE support (jsc#SLE-14992).
• Limit P2P_DEVICE name to appropriate ifname size.
• Fix wicked wlan (bsc#1156920)
• Restore fi.epitest.hostap.WPASupplicant.service (bsc#1167331)
• With v2.9 fi.epitest.hostap.WPASupplicant.service is obsolete (bsc#1167331)
• Fix WLAN config on boot with wicked. (bsc#1166933)
• Update to 2.9 release:
  • SAE changes
    • disable use of groups using Brainpool curves
    • improved protection against side channel attacks [https://w1.fi/security/2019-6/]
  • EAP-pwd changes
    • disable use of groups using Brainpool curves
    • allow the set of groups to be configured (eap_pwd_groups)
    • improved protection against side channel attacks [https://w1.fi/security/2019-6/]
  • fixed FT-EAP initial mobility domain association using PMKSA caching (disabled by default for backwards compatibility; can be enabled with ft_eap_pmksa_caching=1)
  • fixed a regression in OpenSSL 1.1+ engine loading
  • added validation of RSNE in (Re)Association Response frames
  • fixed DPP bootstrapping URI parser of channel list
  • extended EAP-SIM/AKA fast re-authentication to allow use with FILS
  • extended ca_cert_blob to support PEM format
  • improved robustness of P2P Action frame scheduling
  • added support for EAP-SIM/AKA using anonymous@realm identity
  • fixed Hotspot 2.0 credential selection based on roaming consortium to ignore credentials without a specific EAP method
  • added experimental support for EAP-TEAP peer (RFC 7170)
  • added experimental support for EAP-TLS peer with TLS v1.3
  • fixed a regression in WMM parameter configuration for a TDLS peer
  • fixed a regression in operation with drivers that offload 802.1X 4-way handshake
  • fixed an ECDH operation corner case with OpenSSL
  • SAE changes
    • added support for SAE Password Identifier
    • changed default configuration to enable only groups 19, 20, 21 (i.e., disable groups 25 and 26) and disable all unsuitable groups completely based on REVmd changes
    • do not regenerate PWE unnecessarily when the AP uses the anti-clogging token mechanisms
    • fixed some association cases where both SAE and FT-SAE were enabled on both the station and the selected AP
    • started to prefer FT-SAE over SAE AKM if both are enabled
    • started to prefer FT-SAE over FT-PSK if both are enabled
    • fixed FT-SAE when SAE PMKSA caching is used
    • reject use of unsuitable groups based on new implementation guidance in REVmd (allow only FFC groups with prime >= 3072 bits and ECC groups with prime >= 256)
    • minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-1/] (CVE-2019-9494, bsc#1131868)
  • EAP-pwd changes
    • minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-2/] (CVE-2019-9495, bsc#1131870)
    • verify server scalar/element [https://w1.fi/security/2019-4/] (CVE-2019-9497, CVE-2019-9498, CVE-2019-9499, bsc#1131874, bsc#1131872, bsc#1131871, bsc#1131644)
    • fix message reassembly issue with unexpected fragment [https://w1.fi/security/2019-5/] (CVE-2019-11555, bsc#1133640)
    • enforce rand,mask generation rules more strictly
    • fix a memory leak in PWE derivation
    • disallow ECC groups with a prime under 256 bits (groups 25, 26, and 27)
    • SAE/EAP-pwd side-channel attack update [https://w1.fi/security/2019-6/] (CVE-2019-13377, bsc#1144443)
  • fixed CONFIG_IEEE80211R=y (FT) build without CONFIG_FILS=y
  • Hotspot 2.0 changes
    • do not indicate release number that is higher than the one AP supports
    • added support for release number 3
    • enable PMF automatically for…

This update for wpa_supplicant fixes the following issues:

wpa_supplicant was updated to 2.9 release:

• SAE changes
  • disable use of groups using Brainpool curves
  • improved protection against side channel attacks [https://w1.fi/security/2019-6/]
• EAP-pwd changes
  • disable use of groups using Brainpool curves
  • allow the set of groups to be configured (eap_pwd_groups)
  • improved protection against side channel attacks [https://w1.fi/security/2019-6/]
• fixed FT-EAP initial mobility domain association using PMKSA caching (disabled by default for backwards compatibility; can be enabled with ft_eap_pmksa_caching=1)
• fixed a regression in OpenSSL 1.1+ engine loading
• added validation of RSNE in (Re)Association Response frames
• fixed DPP bootstrapping URI parser of channel list
• extended EAP-SIM/AKA fast re-authentication to allow use with FILS
• extended ca_cert_blob to support PEM format
• improved robustness of P2P Action frame scheduling
• added support for EAP-SIM/AKA using anonymous@realm identity
• fixed Hotspot 2.0 credential selection based on roaming consortium to ignore credentials without a specific EAP method
• added experimental support for EAP-TEAP peer (RFC 7170)
• added experimental support for EAP-TLS peer with TLS v1.3
• fixed a regression in WMM parameter configuration for a TDLS peer
• fixed a regression in operation with drivers that offload 802.1X 4-way handshake
• fixed an ECDH operation corner case with OpenSSL
• SAE changes
  • added support for SAE Password Identifier
  • changed default configuration to enable only groups 19, 20, 21 (i.e., disable groups 25 and 26) and disable all unsuitable groups completely based on REVmd changes
  • do not regenerate PWE unnecessarily when the AP uses the anti-clogging token mechanisms
  • fixed some association cases where both SAE and FT-SAE were enabled on both the station and the selected AP
  • started to prefer FT-SAE over SAE AKM if both are enabled
  • started to prefer FT-SAE over FT-PSK if both are enabled
  • fixed FT-SAE when SAE PMKSA caching is used
  • reject use of unsuitable groups based on new implementation guidance in REVmd (allow only FFC groups with prime >= 3072 bits and ECC groups with prime >= 256)
  • minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-1/] (CVE-2019-9494, bsc#1131868)
• EAP-pwd changes
  • minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-2/] (CVE-2019-9495, bsc#1131870)
  • verify server scalar/element [https://w1.fi/security/2019-4/] (CVE-2019-9497, CVE-2019-9498, CVE-2019-9499, bsc#1131874, bsc#1131872, bsc#1131871, bsc#1131644)
  • fix message reassembly issue with unexpected fragment [https://w1.fi/security/2019-5/] (CVE-2019-11555, bsc#1133640)
  • enforce rand,mask generation rules more strictly
  • fix a memory leak in PWE derivation
  • disallow ECC groups with a prime under 256 bits (groups 25, 26, and 27)
  • SAE/EAP-pwd side-channel attack update [https://w1.fi/security/2019-6/] (CVE-2019-13377, bsc#1144443)
• fixed CONFIG_IEEE80211R=y (FT) build without CONFIG_FILS=y
• Hotspot 2.0 changes
  • do not indicate release number that is higher than the one AP supports
  • added support for release number 3
  • enable PMF automatically for network profiles created from credentials
• fixed OWE network profile saving
• fixed DPP network profile saving
• added support for RSN operating channel validation (CONFIG_OCV=y and network profile parameter ocv=1)
• added Multi-AP backhaul STA support
• fixed build with LibreSSL
• number of MKA/MACsec fixes and extensions
• extended domain_match and domain_suffix_match to allow list of values *…

This update for wpa_supplicant fixes the following issues:

• CVE-2022-23303, CVE-2022-23304: Fixed SAE/EAP-pwd side-channel attacks (bsc#1194732, bsc#1194733)

• CVE-2021-0326: Fixed P2P group information processing vulnerability (bsc#1181777)

• Fix systemd device ready dependencies in [email protected] file. (bsc#1182805)

• Limit P2P_DEVICE name to appropriate ifname size

• Enable SAE support(jsc#SLE-14992).

• Fix wicked wlan (bsc#1156920)

• Change wpa_supplicant.service to ensure wpa_supplicant gets started before network. Fix WLAN config on boot with wicked. (bsc#1166933)

• Adjust the service to start after network.target wrt bsc#1165266

Update to 2.9 release:

• SAE changes
  • disable use of groups using Brainpool curves
  • improved protection against side channel attacks [https://w1.fi/security/2019-6/]
• EAP-pwd changes
  • disable use of groups using Brainpool curves
  • allow the set of groups to be configured (eap_pwd_groups)
  • improved protection against side channel attacks [https://w1.fi/security/2019-6/]
• fixed FT-EAP initial mobility domain association using PMKSA caching (disabled by default for backwards compatibility; can be enabled with ft_eap_pmksa_caching=1)
• fixed a regression in OpenSSL 1.1+ engine loading
• added validation of RSNE in (Re)Association Response frames
• fixed DPP bootstrapping URI parser of channel list
• extended EAP-SIM/AKA fast re-authentication to allow use with FILS
• extended ca_cert_blob to support PEM format
• improved robustness of P2P Action frame scheduling
• added support for EAP-SIM/AKA using anonymous@realm identity
• fixed Hotspot 2.0 credential selection based on roaming consortium to ignore credentials without a specific EAP method
• added experimental support for EAP-TEAP peer (RFC 7170)
• added experimental support for EAP-TLS peer with TLS v1.3
• fixed a regression in WMM parameter configuration for a TDLS peer
• fixed a regression in operation with drivers that offload 802.1X 4-way handshake
• fixed an ECDH operation corner case with OpenSSL
• SAE changes
  • added support for SAE Password Identifier
  • changed default configuration to enable only groups 19, 20, 21 (i.e., disable groups 25 and 26) and disable all unsuitable groups completely based on REVmd changes
  • do not regenerate PWE unnecessarily when the AP uses the anti-clogging token mechanisms
  • fixed some association cases where both SAE and FT-SAE were enabled on both the station and the selected AP
  • started to prefer FT-SAE over SAE AKM if both are enabled
  • started to prefer FT-SAE over FT-PSK if both are enabled
  • fixed FT-SAE when SAE PMKSA caching is used
  • reject use of unsuitable groups based on new implementation guidance in REVmd (allow only FFC groups with prime >= 3072 bits and ECC groups with prime >= 256)
  • minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-1/] (CVE-2019-9494, bsc#1131868)
• EAP-pwd changes
  • minimize timing and memory use differences in PWE derivation [https://w1.fi/security/2019-2/] (CVE-2019-9495, bsc#1131870)
  • verify server scalar/element [https://w1.fi/security/2019-4/] (CVE-2019-9497, CVE-2019-9498, CVE-2019-9499, bsc#1131874, bsc#1131872, bsc#1131871, bsc#1131644)
  • fix message reassembly issue with unexpected fragment [https://w1.fi/security/2019-5/] (CVE-2019-11555, bsc#1133640)
  • enforce rand,mask generation rules more strictly
  • fix a memory leak in PWE derivation
  • disallow ECC groups with a prime under 256 bits (groups 25, 26, and 27)
  • SAE/EAP-pwd side-channel attack update [https://w1.fi/security/2019-6/] (CVE-2019-13377, bsc#1144443)
• fixed CONFIG_IEEE80211R=y (FT) build without CONFIG_FILS=y
• Hotspot 2.0 changes
  • do not indicate release number that is higher than the one AP supports
  • added support for release number 3
  • enable PMF automatically for network profiles created from credentials *…

It was discovered that wpa_supplicant and hostapd were vulnerable to a side channel attack against EAP-pwd. A remote attacker could possibly use this issue to recover certain passwords.