cbcvebase.
CVE-2014-0128
published 2014-04-14

CVE-2014-0128: Squid 3.1 before 3.3.12 and 3.4 before 3.4.4, when SSL-Bump is enabled, allows remote attackers to cause a denial of service (assertion failure) via a crafted…

PriorityP335medium5CVSS 2.0
AVNACLAuNCNINAP
EPSS
32.63%
98.1th percentile
Squid 3.1 before 3.3.12 and 3.4 before 3.4.4, when SSL-Bump is enabled, allows remote attackers to cause a denial of service (assertion failure) via a crafted range request, related to state management.

Affected

88 ranges· showing 25
VendorProductVersion rangeFixed in
debiansquid
opensuseopensuse
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid
squid-cachesquid

Detection & IOCsextracted from sources · hover to see the quote

urlhttp://www.squid-cache.org/Versions/v3/3.3/changesets/squid-3.3-12677.patch
urlhttp://www.squid-cache.org/Versions/v3/3.4/changesets/squid-3.4-13104.patch
urlhttp://www.squid-cache.org/Advisories/SQUID-2014_1.txt
  • The vulnerability is only exploitable when SSL-Bump is enabled on Squid. Detection should focus on Squid instances with SSL-Bump active receiving crafted HTTP Range requests that trigger an assertion failure/crash.
  • Monitor Squid process logs for assertion failures; a crash/assertion in Squid with SSL-Bump enabled is a strong indicator of exploitation attempts.
  • Squid versions 3.1 through 3.3.11 and 3.4 through 3.4.3 are vulnerable; versions 3.0 and older and version 2 are not affected. Use version fingerprinting to identify exposed instances.
  • ·The vulnerability only exists when SSL-Bump is enabled. Disabling SSL-Bump entirely removes the attack surface.
  • ·A partial mitigation is to add 'ssl_bump none' rules at the top of ssl_bump configuration to disable SSL-Bump for affected clients without fully removing the feature.
  • ·Red Hat Enterprise Linux 5 shipped Squid without SSL-Bump support and is therefore not affected; RHEL 6 was addressed via RHSA-2014:0597.

CVSS provenance

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv5.0MEDIUM
vendor_debian5.0LOW
vendor_redhat5.0MEDIUM
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