Kiota: XML Doc-Comment Newline Breakout Code Injection
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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, 1.32.3
- 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: total
Summary
Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.3, Kiota is affected by a code-generation injection vulnerability in the C# XML documentation-comment sink (the description, externalDocs label, and externalDocs link fields emitted as /// … comments). When text from an OpenAPI description is written into single-line XML doc comments without stripping newline and Unicode line-terminator characters, an attacker can break out of the /// comment line and inject additional code into generated C# clients. This issue is fixed in version 1.29.1 and 1.32.3.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- 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 1.32.3
- Microsoft.OpenApi.Kiota.BuilderNuGet
From 1.30.0 · fixed in 1.32.3
- Microsoft.OpenApi.KiotaNuGet
fixed in 1.29.1
- Microsoft.OpenApi.Kiota.BuilderNuGet
fixed in 1.29.1