SimpleSAMLphp Incorrect IV generation for encryption
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 software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | simplesamlphp/simplesamlphp | >= 1.14.0, < 1.14.12 | 1.14.12 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2017-12871
- https://github.com/simplesamlphp/simplesamlphp/commit/77df6a932d46daa35e364925eb73a175010dc904
- https://github.com/simplesamlphp/simplesamlphp/commit/ccf75981187aa88f7165abdb1b1965c0934acda0
- https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2017-12871.yaml
- https://github.com/simplesamlphp/simplesamlphp
- https://simplesamlphp.org/security/201703-02
- CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-326- Platform
- Composer
- Package
simplesamlphp/simplesamlphp- Disclosed
- 17.05.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-ww3w-592j-5qrw - CC BY 4.0
Vulnerability history: simplesamlphp/simplesamlphp
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 23
- First → latest
- 01.2020 07.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 3
- High 4
- Medium 12
- Low 4
Disclosures per year
- 2020: 6
- 2021: 0
- 2022: 12
- 2023: 0
- 2024: 4
- 2025: 0
- 2026: 1
-
SimpleSAMLphp Incorrect IV generation for encryption this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.