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CVE-2023-20215

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
03/08/2023
Last modified:
25/01/2024

Description

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.<br /> <br /> 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 vulnerability by using an affected device to connect to a malicious server and receiving crafted HTTP responses. A successful exploit could allow the attacker to bypass an explicit block rule and receive traffic that should have been rejected by the device.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

Base Score 3.x
5.30
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:asyncos:11.7.0-406:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:11.7.0-418:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:11.7.1-006:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:11.7.1-020:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:11.7.1-049:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:11.7.2-011:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:11.8.0-414:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:11.8.1-023:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:11.8.3-018:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:11.8.3-021:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:12.0.1-268:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:12.0.3-007:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:12.5.1-011:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:12.5.2-007:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:12.5.4-005:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools