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GHSA-v9hx-v6vf-g36j
No affected components available
Improper signature counter value handling
Impact
A flaw was found in webauthn4j-spring-security-core. When an authneticator returns an incremented signature counter value during authentication, webauthn4j-spring-security-core does not properly persist the value, which means cloned authenticator detection does not work. An attacker who cloned valid authenticator in some way can use the cloned authenticator without being detected.
Patches
Please upgrade to com.webauthn4j:webauthn4j-spring-security-core:0.9.1.RELEASE
References
For more details about WebAuthn signature counters, see WebAuthn specification 6.1.1. Signature Counter Considerations.
Reporter
This issue was discovered by Michael Budnick (@mbudnick)
The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
- CVE-2023-45669Alias
- EUVD-2023-2816Alias
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