CVE-2022-45060
An HTTP Request Forgery issue was discovered in Varnish Cache 5.x and 6.x before 6.0.11, 7.x before 7.1.2, and 7.2.x before 7.2.1.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.02%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An HTTP Request Forgery issue was discovered in Varnish Cache 5.x and 6.x before 6.0.11, 7.x before 7.1.2, and 7.2.x before 7.2.1. An attacker may introduce characters through HTTP/2 pseudo-headers that are invalid in the context of an HTTP/1 request line, causing the Varnish server to produce invalid HTTP/1 requests to the backend. This could, in turn, be used to exploit vulnerabilities in a server behind the Varnish server. Note: the 6.0.x LTS series (before 6.0.11) is affected.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.02% probability · 61th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- varnish-software/varnish cache · varnish-software/varnish cache plus · varnish cache project/varnish cache · fedoraproject/fedora · debian/debian linux
- Source
- cve@mitre.org
References
- https://docs.varnish-software.com/security/VSV00011Mitigation, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00036.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G6ZMOZVBLZXHEV5VRW4I4SOWLQEK5OF5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M4KVVCIQVINQQ2D7ORNARSYALMJUMP3I/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XGF6LFTHXCSYMYUX5HLMVXQH3WHCSFLU/
- https://varnish-cache.org/security/VSV00011.htmlMitigation, Vendor Advisory
- https://www.debian.org/security/2023/dsa-5334Third Party Advisory
- https://docs.varnish-software.com/security/VSV00011Mitigation, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00036.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G6ZMOZVBLZXHEV5VRW4I4SOWLQEK5OF5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M4KVVCIQVINQQ2D7ORNARSYALMJUMP3I/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XGF6LFTHXCSYMYUX5HLMVXQH3WHCSFLU/
- https://varnish-cache.org/security/VSV00011.htmlMitigation, Vendor Advisory
- https://www.debian.org/security/2023/dsa-5334Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.