SARA / Free Tools / CVE / CVE-2023-20215

CVE-2023-20215 — A vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secu

A vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass a configured rule, allowing traffic onto a network that should have been blocked. This vulnerability is due to improper detec

CVSS
5.8 MEDIUM
EPSS
0.07% (top 80.10%)
CWE
CWE-202
Published
2023-08-03T21:16:38.159Z
Last modified
2024-08-02T09:05:35.594Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

01What is this vulnerability?

A vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass a configured rule, allowing traffic onto a network that should have been blocked. This vulnerability is due to improper detection of malicious traffic when the traffic is encoded with a specific content format. An attacker could exploit this…

02Affected products

VendorProductVersions
CiscoCisco Secure Web Appliance11.7.0-406, 11.7.0-418, 11.7.1-049, 11.7.1-006, 11.7.1-020, 11.7.2-011, 11.8.0-414, 11.8.1-023, 11.8.3-018, 11.8.3-021, 12.0.1-268, 12.0.3-007, 12.5.2-007, 12.5.1-011, 12.5.4-005, 12.5.5-004, 14.5.0-498, 14.5.1-016, 14.0.3-014, 14.0.2-012, 14.0.4-005

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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