CVE-2024-22192
Ursa CL-Signatures AnonCreds Privacy Leak
Description
Ursa is a cryptographic library for use with blockchains. The revocation scheme that is part of the Ursa CL-Signatures implementations has a flaw that could impact the privacy guarantees defined by the AnonCreds verifiable credential model. Notably, a malicious verifier may be able to generate a unique identifier for a holder providing a verifiable presentation that includes a Non-Revocation proof. The impact of the flaw is that a malicious verifier may be able to determine a unique identifier for a holder presenting a Non-Revocation proof. Ursa has moved to end-of-life status and no fix is expected.
INFO
Published Date :
Jan. 16, 2024, 10:15 p.m.
Last Modified :
Jan. 24, 2024, 6:13 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-22192.
| URL | Resource |
|---|---|
| https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-22192 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-22192 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jan. 24, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g No Types Assigned https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:hyperledger:ursa:0.1.0:*:*:*:*:rust:*:* -
CVE Received by [email protected]
Jan. 16, 2024
Action Type Old Value New Value Added Description Ursa is a cryptographic library for use with blockchains. The revocation scheme that is part of the Ursa CL-Signatures implementations has a flaw that could impact the privacy guarantees defined by the AnonCreds verifiable credential model. Notably, a malicious verifier may be able to generate a unique identifier for a holder providing a verifiable presentation that includes a Non-Revocation proof. The impact of the flaw is that a malicious verifier may be able to determine a unique identifier for a holder presenting a Non-Revocation proof. Ursa has moved to end-of-life status and no fix is expected. Added Reference GitHub, Inc. https://github.com/hyperledger-archives/ursa/security/advisories/GHSA-6698-mhxx-r84g [No types assigned] Added CWE GitHub, Inc. CWE-327 Added CVSS V3.1 GitHub, Inc. AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-22192 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-22192
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.04%
score
0.36316
percentile