Vulnerability in Simplesamlphp
CVE-2017-12871
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 · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Simplesamlphp — versions 1.14.0, 1.14.1, 1.14.2
Weakness classification (CWE)
References
- simplesamlphp.org/security/201703-02 (Patch, Third Party Advisory, Issue Tracking)
- github.com/simplesamlphp/simplesamlphp/commit/77df6a932d46daa35e364925eb73a1750… (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2017-12871?
- CVE-2017-12871 is a medium-severity vulnerability in Simplesamlphp, classified under Inadequate Encryption Strength. CVSS score: 5.9/10. Published 2017-09-01.
- How severe is CVE-2017-12871?
- Medium severity. CVSS v3 base score is 5.9 out of 10.