CVE-2017-1000071 json
Jasig phpCAS version 1.3.4 is vulnerable to an authentication bypass in the validateCAS20 function when configured to authenticate against…
published 2017-07-13 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-1388
- cvss
- 8.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.5%
- EPSS 3.5% chance of exploitation in 30 days, percentile 89%
- public exploits
- 0
- none known
Summary
Jasig phpCAS version 1.3.4 is vulnerable to an authentication bypass in the validateCAS20 function when configured to authenticate against an old CAS server.
Patch / fix
- php-cas Debian 14, Debian 13, Debian 12 1.3.6-1
debian advisories DEBIAN-CVE-2017-1000071
Exploit prediction
3.54% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
github.com
/Jasig/phpCAS/blob/master/docs/ChangeLog
third-party-advisory
-
securityfocus.com
/bid/99609
vdb-entry, third-party-advisory
-
github.com
/Jasig/phpCAS/issues/228
third-party-advisory
Sources
- CVE List CVE-2017-1000071
- NVD CVE-2017-1000071
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.