SimpleSAMLphp Incorrect IV generation for encryption
Published Sep 1, 2017 · Updated Oct 23, 2026 · Also known as GHSA-ww3w-592j-5qrw
Original summary
Normalized public record · Updated Oct 23, 2026
SimpleSAMLphp Incorrect IV generation for encryption
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
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).
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- GHSA-ww3w-592j-5qrw
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
Record history
Published Sep 1, 2017 · Last refreshed Oct 23, 2026