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.
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Cisco | Cisco Secure Web Appliance | 11.7.0-406, 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 | — |
Advisories 1
- WID-SEC-2023-1948 Cisco Secure Web Appliance: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Aug 2, 2023