The cpansign verify functionality in the Module::Signature module before 0.72 for Perl allows attackers to bypass the signature check and execute arbitrary code via a SIGNATURE file with a "special unknown cipher" that references an untrusted module in Digest/
Published Aug 19, 2013
4.4
MEDIUMCVSS 2.0
EPSS 0.56%
Description
The cpansign verify functionality in the Module::Signature module before 0.72 for Perl allows attackers to bypass the signature check and execute arbitrary code via a SIGNATURE file with a "special unknown cipher" that references an untrusted module in Digest/.
Affected products
No data.
Configuration 1
- 12.04
- 12.10
- 13.04
Configuration 2
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:L/AC:M/Au:N/C:P/I:P/A:P
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.56% (0.00557) | 44.43th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.55% (0.00553) | 41.59th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.20% (0.00198) | 39.76th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.38% (0.00377) | 73.68th | v3 (v2023.03.01) |
| May 24, 2024 | 0.19% (0.00195) | 56.98th | v3 (v2023.03.01) |
| May 10, 2024 | 0.12% (0.00123) | 46.41th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.10% (0.00100) | 40.65th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.09% (0.00088) | 36.35th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.08% (0.00084) | 33.97th | v3 (v2023.03.01) |
| Aug 18, 2023 | 0.38% (0.00377) | 69.35th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.36% (0.00360) | 67.82th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.14% (0.02137) | 80.04th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.14% (0.02137) | 78.12th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.14% (0.02137) | 56.87th | v2 (v2022.01.01) |
References (8)
- http://lists.opensuse.org/opensuse-updates/2013-07/msg00039.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2013-07/msg00043.html vendor-advisoryx_refsource_SUSE
- http://www.openwall.com/lists/oss-security/2013/06/05/16 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/60352 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-1896-1 vendor-advisoryx_refsource_UBUNTU
- https://bugzilla.redhat.com/show_bug.cgi?id=971096 x_refsource_MISC
- https://github.com/audreyt/module-signature/commit/575f7bd6ba4cc7c92f841e8758f88a131674ebf2 x_refsource_CONFIRMExploitPatch
- https://github.com/audreyt/module-signature/commit/cbd06b392a73c63159dc5c20ff5b3c8fc88c4896 x_refsource_CONFIRMExploitPatch
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-updates/2013-07/msg00039.html | vendor-advisoryx_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-updates/2013-07/msg00043.html | vendor-advisoryx_refsource_SUSE | |
| http://www.openwall.com/lists/oss-security/2013/06/05/16 | mailing-listx_refsource_MLIST | |
| http://www.securityfocus.com/bid/60352 | vdb-entryx_refsource_BID | |
| http://www.ubuntu.com/usn/USN-1896-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://bugzilla.redhat.com/show_bug.cgi?id=971096 | x_refsource_MISC | |
| https://github.com/audreyt/module-signature/commit/575f7bd6ba4cc7c92f841e8758f88a131674ebf2 | x_refsource_CONFIRMExploitPatch | |
| https://github.com/audreyt/module-signature/commit/cbd06b392a73c63159dc5c20ff5b3c8fc88c4896 | x_refsource_CONFIRMExploitPatch |
Change history (0)
No recorded changes yet.