CVE-2022-2880
Requests forwarded by ReverseProxy include the raw query parameters from the inbound request, including unparsable parameters rejected by net/http.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Requests forwarded by ReverseProxy include the raw query parameters from the inbound request, including unparsable parameters rejected by net/http. This could permit query parameter smuggling when a Go proxy forwards a parameter with an unparsable value. After fix, ReverseProxy sanitizes the query parameters in the forwarded query when the outbound request's Form field is set after the ReverseProxy. Director function returns, indicating that the proxy has parsed the query parameters. Proxies which do not parse query parameters continue to forward the original query parameters unchanged.
- 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
- 1.15% probability · 65th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-444
- Affected
- golang/go
- Source
- security@golang.org
References
- https://go.dev/cl/432976Patch
- https://go.dev/issue/54663Exploit, Issue Tracking, Third Party Advisory
- https://groups.google.com/g/golang-announce/c/xtuG5faxtaUMailing List, Release Notes
- https://pkg.go.dev/vuln/GO-2022-1038Vendor Advisory
- https://security.gentoo.org/glsa/202311-09
- https://go.dev/cl/432976Patch
- https://go.dev/issue/54663Exploit, Issue Tracking, Third Party Advisory
- https://groups.google.com/g/golang-announce/c/xtuG5faxtaUMailing List, Release Notes
- https://pkg.go.dev/vuln/GO-2022-1038Vendor Advisory
- https://security.gentoo.org/glsa/202311-09
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.