VulnerabilityModified
CVE-2020-15049
An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3.
HIGH 8.8EPSS 5.71%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.71%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.71% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-444
- Affected
- squid-cache/squid · fedoraproject/fedora
- Source
- cve@mitre.org
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.patchPatch, Vendor Advisory
- http://www.squid-cache.org/Versions/v5/changesets/squid-5-485c9a7bb1bba88754e07ad0094647ea57a6eb8d.patchPatch, Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3RG5FGSTCAYVIJPJHIY3MRZ7NFT6HDO7/
- https://security.netapp.com/advisory/ntap-20210312-0001/
- https://usn.ubuntu.com/4551-1/
- https://www.debian.org/security/2020/dsa-4732
- 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.patchPatch, Vendor Advisory
- http://www.squid-cache.org/Versions/v5/changesets/squid-5-485c9a7bb1bba88754e07ad0094647ea57a6eb8d.patchPatch, Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3RG5FGSTCAYVIJPJHIY3MRZ7NFT6HDO7/
- https://security.netapp.com/advisory/ntap-20210312-0001/
- https://usn.ubuntu.com/4551-1/
- https://www.debian.org/security/2020/dsa-4732
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.