Medium severity · published Mar 16, 2023
CVE-2023-28113
russh is a Rust SSH client and server library
5.9
CVSS
0.6%
EPSS
No
On KEV
Description
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
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RU
Russh · Russh Project
0.34.0 before 0.36.2; 0.37.0; 0.37.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-28113
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-28113
Product
https://github.com/warp-tech/russh/blob/master/russh/src/kex/dh/groups.rs#L72-L76
Product
https://github.com/warp-tech/russh/blob/master/russh/src/kex/dh/groups.rs#L78-L81
Patch
https://github.com/warp-tech/russh/commit/d831a3716d3719dc76f091fcea9d94bd4ef97c6e
Release Notes
https://github.com/warp-tech/russh/releases/tag/v0.36.2
Release Notes
https://github.com/warp-tech/russh/releases/tag/v0.37.1
Exploit
https://github.com/warp-tech/russh/security/advisories/GHSA-cqvm-j2r2-hwpg
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