Hydra up to 1.4.0+oryOS.16 authentication replay

Summaryinfo

A vulnerability labeled as critical has been found in Hydra up to 1.4.0+oryOS.16. Impacted is an unknown function. Executing a manipulation can lead to authentication replay. This vulnerability is handled as CVE-2020-5300. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Hydra up to 1.4.0+oryOS.16 and classified as critical. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a authentication replay vulnerability. The CWE definition for the vulnerability is CWE-294. A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In Hydra (an OAuth2 Server and OpenID Certifiedâ„¢ OpenID Connect Provider written in Go), before version 1.4.0+oryOS.17, when using client authentication method 'private_key_jwt' [1], OpenId specification says the following about assertion `jti`: "A unique identifier for the token, which can be used to prevent reuse of the token. These tokens MUST only be used once, unless conditions for reuse were negotiated between the parties". Hydra does not check the uniqueness of this `jti` value. Exploiting this vulnerability is somewhat difficult because: - TLS protects against MITM which makes it difficult to intercept valid tokens for replay attacks - The expiry time of the JWT gives only a short window of opportunity where it could be replayed This has been patched in version v1.4.0+oryOS.17

The weakness was released 04/06/2020 (GitHub Repository). The advisory is available at github.com. This vulnerability was named CVE-2020-5300 since 01/02/2020. The exploitation appears to be difficult. The attack can be initiated remotely. A single authentication is necessary for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1040 by the MITRE ATT&CK project.

Upgrading to version 1.4.0+oryOS.17 eliminates this vulnerability.

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Productinfo

Name

• Hydra

Version

• 1.4.0+oryOS.0
• 1.4.0+oryOS.1
• 1.4.0+oryOS.2
• 1.4.0+oryOS.3
• 1.4.0+oryOS.4
• 1.4.0+oryOS.5
• 1.4.0+oryOS.6
• 1.4.0+oryOS.7
• 1.4.0+oryOS.8
• 1.4.0+oryOS.9
• 1.4.0+oryOS.10
• 1.4.0+oryOS.11
• 1.4.0+oryOS.12
• 1.4.0+oryOS.13
• 1.4.0+oryOS.14
• 1.4.0+oryOS.15
• 1.4.0+oryOS.16

License

• open-source

CPE 2.3info

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CPE 2.2info

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