National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2020-11945 Detail

Current Description

An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials).

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 9.8 CRITICAL
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.html
http://master.squid-cache.org/Versions/v4/changesets/squid-4-eeebf0f37a72a2de08348e85ae34b02c34e9a811.patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2020/04/23/2 Mailing List Third Party Advisory
http://www.squid-cache.org/Versions/v4/changesets/squid-4-eeebf0f37a72a2de08348e85ae34b02c34e9a811.patch Patch Vendor Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1170313 Issue Tracking Third Party Advisory
https://github.com/squid-cache/squid/commit/eeebf0f37a72a2de08348e85ae34b02c34e9a811 Patch Third Party Advisory
https://github.com/squid-cache/squid/pull/585 Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4FWQRYZJPHAZBLXJ56FPCHJN5X2FP3VA/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H4MWXEZAJSOGRJSS2JCJK4WBSND4IV46/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RV2VZWFJNO3B56IVN56HHKJASG5DYUIX/
https://security.gentoo.org/glsa/202005-05
https://usn.ubuntu.com/4356-1/
https://www.debian.org/security/2020/dsa-4682

Weakness Enumeration

CWE-ID CWE Name Source
CWE-190 Integer Overflow or Wraparound NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
3.0
Up to (including)
3.5.28
 cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
4.0
Up to (including)
4.10
 cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
5.0
Up to (excluding)
5.0.2


Change History

7 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-11945
NVD Published Date:
04/23/2020
NVD Last Modified:
05/18/2020