russh up to 0.36.1/0.37.0 key management

Summaryinfo

A vulnerability was found in russh up to 0.36.1/0.37.0. It has been declared as problematic. This affects an unknown function. Executing a manipulation can lead to key management. The identification of this vulnerability is CVE-2023-28113. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in russh up to 0.36.1/0.37.0. This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a key management vulnerability. The CWE definition for the vulnerability is CWE-320. As an impact it is known to affect confidentiality. CVE summarizes:

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

The weakness was shared 03/17/2023 as GHSA-cqvm-j2r2-hwpg. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-28113 since 03/10/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.001.

Upgrading to version 0.36.2 or 0.37.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch d831a3716d3719dc76f091fcea9d94bd4ef97c6e is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-0989). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• russh

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29
• 0.30
• 0.31
• 0.32
• 0.33
• 0.34
• 0.35
• 0.36
• 0.36.0
• 0.36.1
• 0.37.0

License

• open-source

CPE 2.3info

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CPE 2.2info

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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