CVE-2017-12870
MEDIUM5.9EPSS 0.26%SimpleSAMLphp Unauthenticated encryption in CBC mode
Published: 5/17/2022Modified: 4/28/2026
Description
SimpleSAMLphp 1.14.12 and earlier make it easier for man-in-the-middle attackers to obtain sensitive information by leveraging use of the aesEncrypt and aesDecrypt methods in the SimpleSAML/Utils/Crypto class to protect session identifiers in replies to non-HTTPS service providers.
Affected packages (2)
- Debian/simplesamlphpfrom 0, < 1.14.15-1
- Packagist/simplesamlphp/simplesamlphpfrom 0, < 1.14.13
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
References (6)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2017-12870
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2017-12870
- PATCHhttps://github.com/simplesamlphp/simplesamlphp
- WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2017-12870.yaml
- WEBhttps://github.com/simplesamlphp/simplesamlphp/commit/4c939be1696bacb2b95ee11d4ebc5814a08b04c5
- WEBhttps://simplesamlphp.org/security/201704-01