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CVE-2021-32794

Accidental removal of IPCPassword (< 5.1.2.4)

6.8 Medium

ArchiSteamFarm is a C# application with primary purpose of idling Steam cards from multiple accounts simultaneously. Due to a bug in ASF code POST /Api/ASF ASF API endpoint responsible for updating global ASF config incorrectly removed IPCPassword from the resulting config when the caller did not specify it explicitly. Due to the above, it was possible for the user to accidentally remove IPCPassword security measure from his IPC interface when updating global ASF config, which exists as part of global config update functionality in ASF-ui. Removal of IPCPassword possesses a security risk, as unauthorized users may in result access the IPC interface after such modification. The issue is patched in ASF V5.1.2.4 and future versions. We recommend to manually verify that IPCPassword is specified after update, and if not, set it accordingly. In default settings, ASF is configured to allow IPC access from localhost only and should not affect majority of users.

Attack profile

How easy it is to exploit

Attack vector
Adjacent network
Complexity
High
Privileges needed
Low
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.03%Up 0.2 points since Jul 27, 2021
90%50%10%1%

What each source reports

CVE List Score used 6.8

Accidental removal of IPCPassword (< 5.1.2.4)

ArchiSteamFarm is a C# application with primary purpose of idling Steam cards from multiple accounts simultaneously. Due to a bug in ASF code POST /Api/ASF ASF API endpoint responsible for updating global ASF config incorrectly removed IPCPassword from the resulting config when the caller did not specify it explicitly. Due to the above, it was possible for the user to accidentally remove IPCPassword security measure from his IPC interface when updating global ASF config, which exists as part of global config update functionality in ASF-ui. Removal of IPCPassword possesses a security risk, as unauthorized users may in result access the IPC interface after such modification. The issue is patched in ASF V5.1.2.4 and future versions. We recommend to manually verify that IPCPassword is specified after update, and if not, set it accordingly. In default settings, ASF is configured to allow IPC access from localhost only and should not affect majority of users.

Record
CVE-2021-32794
CVSS 3.1
6.8 MediumCVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-287
Updated
2026-11-02
EUVDEUVD-2021-19557 6.8

ArchiSteamFarm is a C# application with primary purpose of idling Steam cards from multiple accounts simultaneously. Due to a bug in ASF code POST /Api/ASF ASF API endpoint responsible for updating global ASF config incorrectly removed IPCPassword from the resulting config when the caller did not specify it explicitly. Due to the above, it was possible for the user to accidentally remove IPCPassword security measure from his IPC interface when updating global ASF config, which exists as part of global config update functionality in ASF-ui. Removal of IPCPassword possesses a security risk, as unauthorized users may in result access the IPC interface after such modification. The issue is patched in ASF V5.1.2.4 and future versions. We recommend to manually verify that IPCPassword is specified after update, and if not, set it accordingly. In default settings, ASF is configured to allow IPC access from localhost only and should not affect majority of users.

Record
EUVD-2021-19557
CVSS 3.1
6.8 MediumCVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-03
NVD 6.8

ArchiSteamFarm is a C# application with primary purpose of idling Steam cards from multiple accounts simultaneously. Due to a bug in ASF code POST /Api/ASF ASF API endpoint responsible for updating global ASF config incorrectly removed IPCPassword from the resulting config when the caller did not specify it explicitly. Due to the above, it was possible for the user to accidentally remove IPCPassword security measure from his IPC interface when updating global ASF config, which exists as part of global config update functionality in ASF-ui. Removal of IPCPassword possesses a security risk, as unauthorized users may in result access the IPC interface after such modification. The issue is patched in ASF V5.1.2.4 and future versions. We recommend to manually verify that IPCPassword is specified after update, and if not, set it accordingly. In default settings, ASF is configured to allow IPC access from localhost only and should not affect majority of users.

Record
CVE-2021-32794
CVSS 3.1
6.8 MediumCVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
6.0 MediumAV:N/AC:M/Au:S/C:P/I:P/A:P
Weakness
CWE-287, CWE-306
Updated
2026-11-02
OSV 7.5

ArchiSteamFarm is a C# application with primary purpose of idling Steam cards from multiple accounts simultaneously. Due to a bug in ASF code POST /Api/ASF ASF API endpoint responsible for updating global ASF config incorrectly removed IPCPassword from the resulting config when the caller did not specify it explicitly. Due to the above, it was possible for the user to accidentally remove IPCPassword security measure from his IPC interface when updating global ASF config, which exists as part of global config update functionality in ASF-ui. Removal of IPCPassword possesses a security risk, as unauthorized users may in result access the IPC interface after such modification. The issue is patched in ASF V5.1.2.4 and future versions. We recommend to manually verify that IPCPassword is specified after update, and if not, set it accordingly. In default settings, ASF is configured to allow IPC access from localhost only and should not affect majority of users.

Record
CVE-2021-32794
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-32794 is a medium vulnerability (CVSS 6.8) in Archisteamfarm Project Archisteamfarm, published July 26, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.03%, the 63rd percentile. No source names a fixed version.

References

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