The aesEncrypt method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.x through 1.14.11 makes it easier for context-dependent attackers to bypass the encryption protection mechanism by leveraging use of the first 16 bytes of the secret key as the initialization vector (IV)
Published Sep 1, 2017
5.9
MEDIUMCVSS 3.0
EPSS 0.49%
Description
The aesEncrypt method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.x through 1.14.11 makes it easier for context-dependent attackers to bypass the encryption protection mechanism by leveraging use of the first 16 bytes of the secret key as the initialization vector (IV).
Affected products
No data.
- 1.14.0
- 1.14.1
- 1.14.2
- 1.14.3
- 1.14.4
- 1.14.5
- 1.14.6
- 1.14.7
- 1.14.8
- 1.14.9
- 1.14.10
- 1.14.11
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.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
AV:N/AC:M/Au:N/C:P/I:N/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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.49% (0.00490) | 39.87th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.49% (0.00490) | 41.21th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.09% (0.00094) | 40.38th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.09% (0.00094) | 39.15th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00086) | 34.72th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (6)
- https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2017-12871.yaml
- https://github.com/advisories/GHSA-ww3w-592j-5qrw Advisory
- https://github.com/simplesamlphp/simplesamlphp/commit/77df6a932d46daa35e364925eb73a175010dc904 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/simplesamlphp/simplesamlphp/commit/ccf75981187aa88f7165abdb1b1965c0934acda0
- https://nvd.nist.gov/vuln/detail/CVE-2017-12871
- https://simplesamlphp.org/security/201703-02 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2017-12871.yaml | ||
| https://github.com/advisories/GHSA-ww3w-592j-5qrw | Advisory | |
| https://github.com/simplesamlphp/simplesamlphp/commit/77df6a932d46daa35e364925eb73a175010dc904 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://github.com/simplesamlphp/simplesamlphp/commit/ccf75981187aa88f7165abdb1b1965c0934acda0 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2017-12871 | ||
| https://simplesamlphp.org/security/201703-02 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory |
Change history (0)
No recorded changes yet.