Vulnerability · Published Nov 15, 2024 · Assigned by cisco
CVE-2022-20685Multiple Cisco Products Snort Modbus Denial of Service Vulnerability
High 7.5
In plain English
A high-severity integer overflow in Cisco Cyber Vision from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities).
Official description
A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an integer overflow while processing Modbus traffic. An attacker could exploit this vulnerability by sending crafted Modbus traffic through an affected device. A successful exploit could allow the attacker to cause the Snort process to hang, causing traffic inspection to stop.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Cyber Vision | 3.0.03.0.23.0.33.0.13.1.03.0.43.1.13.1.2 |
| Cisco | Cisco Firepower Threat Defense Software | 6.2.3.146.4.0.16.2.3.76.2.36.4.0.26.2.3.96.2.3.16.2.3.2 |
| Cisco | Cisco UTD SNORT IPS Engine Software | 3.17.1S16.12.3Fuji-16.9.516.12.417.3.1a16.6.616.12.2Fuji-16.9.6 |
Weakness: CWE-190 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- cisco-sa-snort-dos-9D3hJLuj
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sna-xss-NXOxDhRQ</a></p><p><strong>Attention</strong>: Simplifying the Cisco portfolio includes the renaming of security products under one brand: Cisco Secure. For more information, see <a href="https://www.cisco.com/c/en/us/products/security/secure-names.html">Meet Cisco Secure