CVE-2020-15049

EUVD-2020-7177 · Published Jun 30, 2020

An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing "+\ "-" or an uncommon shell whitespace character prefix to the length field-value.

Technologies

Squid-Cache SquidFedoraproject Fedora

Weaknesses

CWE-444

CVSS scores

v3.18.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
v2.06.5AV:N/AC:L/Au:S/C:P/I:P/A:P

MITRE ATT&CK

Inferred

Where this vulnerability fits in an attack

ReconImpact

Initial Access

T1190Exploit Public-Facing Application

References

http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html
http://www.squid-cache.org/Versions/v4/changesets/squid-4-ea12a34d338b962707d5078d6d1fc7c6eb119a22.patch
http://www.squid-cache.org/Versions/v5/changesets/squid-5-485c9a7bb1bba88754e07ad0094647ea57a6eb8d.patch
https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5
https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html

Potentially impacted assets

See if this affects your attack surface