CVE-2017-5999 — An issue was discovered in sysPass 2
An issue was discovered in sysPass 2.x before 2.1, in which an algorithm was never sufficiently reviewed by cryptographers. The fact that inc/SP/Core/Crypt.class is using the MCRYPT_RIJNDAEL_256() function (the 256-bit block version of Rijndael, not AES) instead of MCRYPT_RIJNDAE
Published
2017-03-06T06:59:00.287
Last modified
2026-05-13T00:24:29.033
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
01What is this vulnerability?
An issue was discovered in sysPass 2.x before 2.1, in which an algorithm was never sufficiently reviewed by cryptographers. The fact that inc/SP/Core/Crypt.class is using the MCRYPT_RIJNDAEL_256() function (the 256-bit block version of Rijndael, not AES) instead of MCRYPT_RIJNDAEL_128 (real AES) could help an attacker to create unknown havoc in the remote system.
02Affected products
No structured affected-product list available — see references below for vendor advisories.
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2017-03-06T06:59:00.287
- Last modified: 2026-05-13T00:24:29.033
09References
- www.securityfocus.com — http://www.securityfocus.com/bid/96562
- cxsecurity.com — https://cxsecurity.com/issue/WLB-2017020196
- github.com — https://github.com/nuxsmin/sysPass/commit/a0e2c485e53b370a7cc6d833e192c3c5bfd70e…
- github.com — https://github.com/nuxsmin/sysPass/releases/tag/2.1.0.17022601
- www.securityfocus.com — http://www.securityfocus.com/bid/96562
- cxsecurity.com — https://cxsecurity.com/issue/WLB-2017020196
- github.com — https://github.com/nuxsmin/sysPass/commit/a0e2c485e53b370a7cc6d833e192c3c5bfd70e…
- github.com — https://github.com/nuxsmin/sysPass/releases/tag/2.1.0.17022601
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