CVE-2017-12871
medium
CVSS v3
5.9
CVSS v4 NEW
—
VIR risk
5.9
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).
Predictions
Exploit likelihood
69%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 3 releases
| Version | Status | Fixed in |
|---|---|---|
| sid | Fixed | 1.14.15-1 |
| bullseye | Fixed | 1.14.15-1 |
| bookworm | Fixed | 1.14.15-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | simplesamlphp/simplesamlphp | >=1.14.0,<1.14.12 | 1.14.12 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| simplesamlphp | simplesamlphp | 1.14.0 | |
| simplesamlphp | simplesamlphp | 1.14.1 | |
| simplesamlphp | simplesamlphp | 1.14.2 | |
| simplesamlphp | simplesamlphp | 1.14.3 | |
| simplesamlphp | simplesamlphp | 1.14.4 | |
| simplesamlphp | simplesamlphp | 1.14.5 | |
| simplesamlphp | simplesamlphp | 1.14.6 | |
| simplesamlphp | simplesamlphp | 1.14.7 | |
| simplesamlphp | simplesamlphp | 1.14.8 | |
| simplesamlphp | simplesamlphp | 1.14.9 | |
| simplesamlphp | simplesamlphp | 1.14.10 | |
| simplesamlphp | simplesamlphp | 1.14.11 | |
References
- https://github.com/simplesamlphp/simplesamlphp/commit/77df6a932d46daa35e364925eb73a175010dc904
- https://simplesamlphp.org/security/201703-02
- https://nvd.nist.gov/vuln/detail/CVE-2017-12871
- 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://security-tracker.debian.org/tracker/CVE-2017-12871
CWEs
CWE-326
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.