usersfile.c in liboath in OATH Toolkit before 2.4.1 does not properly handle lines containing an invalid one-time-password (OTP) type and a user name in /etc/users.oath, which causes the wrong line to be updated when invalidating an OTP and allows context-dependent attackers to conduct replay attacks, as demonstrated by a commented out line when using libpam-oath
Published Mar 7, 2014
4.9
MEDIUMCVSS 2.0
EPSS 0.88%
Description
usersfile.c in liboath in OATH Toolkit before 2.4.1 does not properly handle lines containing an invalid one-time-password (OTP) type and a user name in /etc/users.oath, which causes the wrong line to be updated when invalidating an OTP and allows context-dependent attackers to conduct replay attacks, as demonstrated by a commented out line when using libpam-oath.
Affected products
No data.
- ≤ 2.4.0
- 1.0.0
- 1.0.1
- 1.2.0
- 1.2.1
- 1.2.2
- 1.4.0
- 1.4.1
- 1.4.2
- 1.4.3
- 1.4.4
- 1.4.5
- 1.4.6
- 1.6.0
- 1.6.1
- 1.6.2
- 1.6.3
- 1.6.4
- 1.8.0
- 1.8.1
- 1.8.2
- 1.10.0
- 1.10.1
- 1.10.2
- 1.10.3
- 1.10.4
- 1.10.5
- 1.12.0
- 1.12.1
- 1.12.2
- 1.12.3
- 1.12.4
- 1.12.5
- 1.12.6
- 2.0.0
- 2.0.1
- 2.0.2
- 2.2.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:S/C:P/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.88% (0.00884) | 57.74th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.88% (0.00877) | 54.15th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.38% (0.00379) | 57.33th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.15% (0.00154) | 53.01th | v3 (v2023.03.01) |
| Oct 20, 2023 | 0.15% (0.00154) | 51.45th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.15% (0.00151) | 49.44th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
References (6)
- http://lists.nongnu.org/archive/html/oath-toolkit-help/2013-12/msg00000.html mailing-listx_refsource_MLIST
- http://lists.nongnu.org/archive/html/oath-toolkit-help/2013-12/msg00002.html mailing-listx_refsource_MLIST
- http://lists.nongnu.org/archive/html/oath-toolkit-help/2013-12/msg00003.html mailing-listx_refsource_MLIST
- http://seclists.org/oss-sec/2014/q1/296 mailing-listx_refsource_MLIST
- http://www.nongnu.org/oath-toolkit/NEWS.html x_refsource_CONFIRM
- https://exchange.xforce.ibmcloud.com/vulnerabilities/91316 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://lists.nongnu.org/archive/html/oath-toolkit-help/2013-12/msg00000.html | mailing-listx_refsource_MLIST | |
| http://lists.nongnu.org/archive/html/oath-toolkit-help/2013-12/msg00002.html | mailing-listx_refsource_MLIST | |
| http://lists.nongnu.org/archive/html/oath-toolkit-help/2013-12/msg00003.html | mailing-listx_refsource_MLIST | |
| http://seclists.org/oss-sec/2014/q1/296 | mailing-listx_refsource_MLIST | |
| http://www.nongnu.org/oath-toolkit/NEWS.html | x_refsource_CONFIRM | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/91316 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.