Improper input validation in F5 nginx
CVE-2011-4968
nginx http proxy module does not verify peer identity of https origin server which could facilitate man-in-the-middle attack (MITM)
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.040 (90.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000
Affected products
- F5 nginx — versions 0.7.61, 0.7.62, 0.7.64
- nginx — versions through 1.6.2
- Debian Linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-tracker.debian.org/tracker/CVE-2011-4968 (Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- bugzilla.suse.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- access.redhat.com/security/cve/cve-2011-4968 (Broken Link)
- www.openwall.com/lists/oss-security/2013/01/03/8 (Patch, Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/57139 (VDB Entry, Third Party Advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/80952 (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2011-4968?
- CVE-2011-4968 is a medium-severity vulnerability in F5 nginx, classified under Improper Input Validation. CVSS score: 4.8/10. Published 2019-11-19.
- How severe is CVE-2011-4968?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2011-4968 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.