Kiota: Generation-time SSRF + remote/local file inclusion via unrestricted $ref
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 1.31.1, 1.29.1, 1.32.5
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.5, Kiota resolved OpenAPI $ref values by fetching remote http(s) URLs and reading local absolute or out-of-tree file paths, allowing `kiota generate` on an attacker-controlled or attacker-influenced description to perform build-time SSRF, remote file inclusion, and local file inclusion by inlining external schemas such as REMOTE_KIOTA_PROP or Leaked into generated clients. This issue is fixed in version 1.29.1 and 1.32.5 by AllowedExternalOriginsStreamLoader and the --allowed-external-origins option.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- microsoft kiota
From 1.30.0 · fixed in 1.31.1; fixed in 1.29.1
- Microsoft.OpenApi.KiotaNuGet
From 1.30.0 · fixed in 1.32.5
- Microsoft.OpenApi.Kiota.BuilderNuGet
From 1.30.0 · fixed in 1.32.5
- Microsoft.OpenApi.KiotaNuGet
fixed in 1.29.1
- Microsoft.OpenApi.Kiota.BuilderNuGet
fixed in 1.29.1