Auth bypass in Ikiwiki
CVE-2017-0356
A flaw, similar to to CVE-2016-9646, exists in ikiwiki before 3.20170111, in the passwordauth plugin's use of CGI::FormBuilder, allowing an attacker to bypass authentication via repeated parameters.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.033 (88.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: -0.001
Affected products
- Ikiwiki — versions before 3.20170111
- Debian Linux — versions 7.0, 8.0
Weakness classification (CWE)
References
- www.debian.org/security/2017/dsa-3760 (vendor-advisory, Third Party Advisory)
- ikiwiki.info/security/ (Vendor Advisory)
- marc.info/ (mailing-list, Exploit, Third Party Advisory)
- www.securityfocus.com/bid/95420 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-0356?
- CVE-2017-0356 is a critical-severity vulnerability in Ikiwiki, classified under Improper Authentication. CVSS score: 9.8/10. Published 2018-04-13.
- How severe is CVE-2017-0356?
- Critical severity. CVSS v3 base score is 9.8 out of 10.