CVE-2022-31021 Unlinkability broken in ursa when verifiers use malicious keys

Ursa is a cryptographic library for use with blockchains. A weakness in the Hyperledger AnonCreds specification that is not mitigated in the Ursa and AnonCreds implementations is that the Issuer does not publish a key correctness proof demonstrating that a generated private key is sufficient to...

CVE-2022-31021 Unlinkability broken in ursa when verifiers use malicious keys

Ursa is a cryptographic library for use with blockchains. A weakness in the Hyperledger AnonCreds specification that is not mitigated in the Ursa and AnonCreds implementations is that the Issuer does not publish a key correctness proof demonstrating that a generated private key is sufficient to...

aries-askar (0.1.2), indy-credx (>=0.2.0, <=0.3.1) +5 more potentially affected by CVE-2024-21670 via ursa (>=0.3.6, <=0.3.7)

ursa CARGO version =0.3.6, =0.2.0, =0.5.0, =0.3.1, =0.1.0, =0.1.0, =0.0.6, =0.0.8 Source cves: CVE-2024-21670 Source advisory: OSV:GHSA-R78F-4Q2Q-HVV4...

GHSA-R78F-4Q2Q-HVV4 CL-Signatures Revocation Scheme in Ursa has flaws that allow a holder to demonstrate non-revocation of a revoked credential

Summary The revocation schema 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, allowing a malicious holder of a revoked credential to generate a valid Non-Revocation Proof for that...

Ursa CL-Signatures Revocation allows verifiers to generate unique identifiers for holders

Summary 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...

GHSA-6698-MHXX-R84G Ursa CL-Signatures Revocation allows verifiers to generate unique identifiers for holders

Summary 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...

aries-askar (0.1.2), indy-credx (>=0.2.0, <=0.3.1) +5 more potentially affected by CVE-2024-22192 via ursa (>=0.3.6, <=0.3.7)

ursa CARGO version =0.3.6, =0.2.0, =0.5.0, =0.3.1, =0.1.0, =0.1.0, =0.0.6, =0.0.8 Source cves: CVE-2024-22192 Source advisory: OSV:GHSA-6698-MHXX-R84G...

aries-askar (0.1.2), indy-credx (>=0.2.0, <=0.3.1) +5 more potentially affected by CVE-2022-31021 via ursa (>=0.3.6, <=0.3.7)

ursa CARGO version =0.3.6, =0.2.0, =0.5.0, =0.3.1, =0.1.0, =0.1.0, =0.0.6, =0.0.8 Source cves: CVE-2022-31021 Source advisory: OSV:GHSA-2Q6J-GQC4-4GW3...

Breaking unlinkability in Identity Mixer using malicious keys

CL Signatures Issuer Key Correctness Proof lacks of prime strength checking A weakness in the Hyperledger AnonCreds specification that is not mitigated in the Ursa and AnonCreds implementations is that the Issuer does not publish a key correctness proof demonstrating that a generated private key ...

Hyperledger Ursa Security Breach

Hyperledger Ursa is a Hyperledger open source cryptographic library for use with blockchains. A security vulnerability exists in Hyperledger Ursa versions prior to 0.3 that stems from a lack of checking the correctness of CL signature issuer keys...

Hyperledger Ursa Encryption Issue Vulnerability

Hyperledger Ursa is a Hyperledger open source cryptographic library for use with the blockchain. A cryptographic issue vulnerability exists in Hyperledger Ursa version 0.1.0 that stems from allowing a malicious holder of revoked credentials to generate a valid, non-revoked proof for that credenti...

PT-2024-19012 · Ursa · Ursa

Name of the Vulnerable Software and Affected Versions: Ursa affected versions not specified Description: The revocation schema in Ursa's CL-Signatures implementations has a flaw that could impact the privacy guarantees defined by the AnonCreds verifiable credential model. This flaw allows a...

Hyperledger Ursa 加密问题漏洞

Hyperledger Ursa is a cryptographic library open-sourced by Hyperledger for use with the blockchain. Hyperledger Ursa suffers from an information disclosure vulnerability that is caused by a flaw in the dangling scheme in the CL Signatures implementation. An attacker could exploit the vulnerabili...

PT-2024-19265 · Ursa · Ursa

Name of the Vulnerable Software and Affected Versions: Ursa affected versions not specified Description: The revocation scheme in Ursa's CL-Signatures implementations has a flaw that could impact the privacy guarantees defined by the AnonCreds verifiable credential model. A malicious verifier may...

Turla Updates Kazuar Backdoor with Advanced Anti-Analysis to Evade Detection

The Russia-linked hacking crew known as Turla has been observed using an updated version of a known second-stage backdoor referred to as Kazuar. The new findings come from Palo Alto Networks Unit 42, which is tracking the adversary under its constellation-themed moniker Pensive Ursa. "As the code...

Russian State Hackers Continue to Attack Ukrainian Entities with Infostealer Malware

Russian state-sponsored actors are continuing to strike Ukrainian entities with information-stealing malware as part of what's suspected to be an espionage operation. Symantec, a division of Broadcom Software, attributed the malicious campaign to a threat actor tracked Shuckworm, also known as...

CVE-2017-9573

The North Adams State Bank Ursa nasb-mobile-banking/id980573797 app 3.0.1 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate...

CVE-2017-9573

The CVE-2017-9573 entry concerns the iOS app nasb-mobile-banking/id980573797 (North Adams State Bank) version 3.0.1. The vulnerability is in the app’s handling of SSL/TLS: it does not verify X.509 certificates from SSL servers in its network stack, which can enable a man-in-the-middle scenario wh...

CVE-2017-9573

The North Adams State Bank Ursa nasb-mobile-banking/id980573797 app 3.0.1 for iOS does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate...