CVE-2023-28113

Summary

russh is a Rust SSH client and server library. Starting in version 0.34.0 and prior to versions 0.36.2 and 0.37.1, Diffie-Hellman key validation is insufficient, which can lead to insecure shared secrets and therefore breaks confidentiality. Connections between a russh client and server or those of a russh peer with some other misbehaving peer are most likely to be problematic. These may vulnerable to eavesdropping. Most other implementations reject such keys, so this is mainly an interoperability issue in such a case. This issue is fixed in versions 0.36.2 and 0.37.1

Affected Software

Weaknesses

• CWE-20: CWE-20 Improper Input Validation
• CWE-358: CWE-358 Improperly Implemented Security Check for Standard

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/warp-tech/russh/commit/d831a3716d3719dc76f091fcea9d94bd4ef97c6e
• https://github.com/warp-tech/russh/blob/master/russh/src/kex/dh/groups.rs#L72-L76
• https://github.com/warp-tech/russh/blob/master/russh/src/kex/dh/groups.rs#L78-L81
• https://github.com/warp-tech/russh/releases/tag/v0.36.2
• https://github.com/warp-tech/russh/releases/tag/v0.37.1
• https://github.com/warp-tech/russh/security/advisories/GHSA-cqvm-j2r2-hwpg

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/warp-tech/russh/commit/d831a3716d3719dc76f091fcea9d94bd4ef97c6e
• https://github.com/warp-tech/russh/blob/master/russh/src/kex/dh/groups.rs#L72-L76
• https://github.com/warp-tech/russh/blob/master/russh/src/kex/dh/groups.rs#L78-L81
• https://github.com/warp-tech/russh/releases/tag/v0.36.2
• https://github.com/warp-tech/russh/releases/tag/v0.37.1
• https://github.com/warp-tech/russh/security/advisories/GHSA-cqvm-j2r2-hwpg

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