CVE-2020-15049

high

Description

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.

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

https://lists.fedoraproject.org/archives/list/[email protected]/message/3RG5FGSTCAYVIJPJHIY3MRZ7NFT6HDO7/

https://security.netapp.com/advisory/ntap-20210312-0001/

https://usn.ubuntu.com/4551-1/

https://www.debian.org/security/2020/dsa-4732

Details

Source: MITRE

Published: 2020-06-30

Updated: 2021-03-12

Type: CWE-444

Risk Information

CVSS v2

Base Score: 6.5

Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8

Severity: MEDIUM

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH