Auth bypass in GNU Gnutls
CVE-2009-1390
Mutt 1.5.19, when linked against (1) OpenSSL (mutt_ssl.c) or (2) GnuTLS (mutt_ssl_gnutls.c), allows connections when only one TLS certificate in the chain is accepted instead of verifying the entire chain, which allows remote attackers to spoof trusted servers via a man-in-the-middle attack.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.019 (79.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- GNU Gnutls
- Mutt — versions 1.5.19
- OpenSSL
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/35288 (Patch, vdb-entry)
- www.redhat.com/archives/fedora-package-announce/2009-June/msg00715.html (vendor-advisory)
- dev.mutt.org/hg/mutt/rev/64bf199c8d8a (Exploit, Patch)
- exchange.xforce.ibmcloud.com/vulnerabilities/51068 (vdb-entry)
- dev.mutt.org/hg/mutt/rev/8f11dd00c770 (Exploit)
- www.openwall.com/lists/oss-security/2009/06/10/2 (mailing-list, Patch)
Frequently asked questions
- What is CVE-2009-1390?
- CVE-2009-1390 is a vulnerability in GNU Gnutls, classified under Improper Authentication. Published 2009-06-16.
- Is CVE-2009-1390 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.