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.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15049
Reference (s):
- https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5
- https://security.netapp.com/advisory/ntap-20210312-0001/
- DEBIAN:DSA-4732
- URL: https://www.debian.org/security/2020/dsa-4732
- FEDORA:FEDORA-2020-cbebc5617e