What is the CVSS score of CVE-2013-1623?

CVE-2013-1623 has a CVSS 2.0 base score of 4.3 (Medium). CVSS vector: AV:N/AC:M/Au:N/C:P/I:N/A:N. EPSS exploitation probability: 0.9%.

Cyassl CVE-2013-1623

MEDIUM

Cryptographic Issues (CWE-310)

2013-02-08 cve@mitre.org

Information Disclosure Cyassl

4.3

CVSS 2.0 · NVD

Severity by source

NVD PRIMARY

4.3 MEDIUM

AV:N/AC:M/Au:N/C:P/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

AV:N/AC:M/Au:N/C:P/I:N/A:N

Attack Vector

Network

Attack Complexity

Confidentiality

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Feb 08, 2013 - 19:55 cve.org

MEDIUM 4.3

DescriptionCVE.org

The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do not properly consider timing side-channel attacks on a noncompliant MAC check operation during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, a related issue to CVE-2013-0169.

AnalysisAI

The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do not properly consider timing side-channel attacks on a noncompliant MAC check operation during the processing of malformed CBC. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-310. The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do not properly consider timing side-channel attacks on a noncompliant MAC check operation during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, a related issue to CVE-2013-0169. Affected products include: Yassl Cyassl. Version information: before 2.5.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.