CVE-2013-2233
Ansible fails to cache SSH host keys
Ansible before 1.2.1 makes it easier for remote attackers to conduct man-in-the-middle attacks by leveraging failure to cache SSH host keys.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Ansible before 1.2.1 makes it easier for remote attackers to conduct man-in-the-middle attacks by leveraging failure to cache SSH host keys.
- Record
CVE-2013-2233- CVSS 3.0
- 7.4 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-320
- Updated
- 2026-11-02
CVE List No score
Ansible before 1.2.1 makes it easier for remote attackers to conduct man-in-the-middle attacks by leveraging failure to cache SSH host keys.
- Record
CVE-2013-2233- Updated
- 2026-11-02
EUVDEUVD-2018-0009 No score
Ansible before 1.2.1 makes it easier for remote attackers to conduct man-in-the-middle attacks by leveraging failure to cache SSH host keys.
- Record
EUVD-2018-0009- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9x6q-5423-w5v9
Ansible fails to cache SSH host keys
Ansible before 1.2.1 makes it easier for remote attackers to conduct man-in-the-middle attacks by leveraging failure to cache SSH host keys.
- Record
GHSA-9x6q-5423-w5v9- CVSS 4.0
- 9.1 Critical
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - CVSS 3.0
- 7.4 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
OSV
Ansible before 1.2.1 makes it easier for remote attackers to conduct man-in-the-middle attacks by leveraging failure to cache SSH host keys.
- Record
CVE-2013-2233- CVSS 3.0
- 7.4 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2013-2233
Ansible before 1.2.1 makes it easier for remote attackers to conduct man-in-the-middle attacks by leveraging failure to cache SSH host keys.
- Record
DEBIAN-CVE-2013-2233- CVSS 3.0
- 7.4 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-9x6q-5423-w5v9
Ansible fails to cache SSH host keys
Ansible before 1.2.1 makes it easier for remote attackers to conduct man-in-the-middle attacks by leveraging failure to cache SSH host keys.
- Record
GHSA-9x6q-5423-w5v9- CVSS 4.0
- 9.1 Critical
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - CVSS 3.0
- 7.4 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2013-2233
Ansible before 1.2.1 makes it easier for remote attackers to conduct man-in-the-middle attacks by leveraging failure to cache SSH host keys.
- Record
UBUNTU-CVE-2013-2233- CVSS 3.0
- 7.4 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
OSVPYSEC-2018-36 No score
Ansible before 1.2.1 makes it easier for remote attackers to conduct man-in-the-middle attacks by leveraging failure to cache SSH host keys.
- Record
PYSEC-2018-36- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ansiblePyPI |
before 1.2.1 | 1.2.1 |
ansibleDebian:12 |
before 1.3.4+dfsg-1 | 1.3.4+dfsg-1 |
ansibleDebian:13 |
before 1.3.4+dfsg-1 | 1.3.4+dfsg-1 |
ansibleDebian:14 |
before 1.3.4+dfsg-1 | 1.3.4+dfsg-1 |
ansiblePyPI |
before 1.2.1, plus listed versions 1.01.11.2 |
1.2.1 |
ansibleUbuntu:14.04:LTS |
before 1.5.4+dfsg-1, plus listed versions 1.1+dfsg-11.3.4+dfsg-11.4.0+dfsg-11.4.1+dfsg-11.4.3+dfsg-11.4.4+dfsg-1 |
1.5.4+dfsg-1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2013-2233 is a high vulnerability (CVSS 7.4) in Redhat Ansible, published May 4, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.90%, the 79th percentile. Fixed in ansible 1.2.1.