7.5
High
CVE-2022-20685 A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker…
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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco Cyber Vision 4.0 | 4.0.0 → 4.0.1 | No fix stated |
| Cisco Cyber Vision 3.2 | 3.2.0 → 3.2.4 | No fix stated |
| Cisco Cyber Vision 3.1 | 3.1.0 → 3.1.2 | No fix stated |
| Cisco Cyber Vision 3.0 | 3.0.0 → 3.0.6 | No fix stated |
| Cisco Firepower Threat Defense Software 7.0 | 7.0.0 → 7.0.0.1 | No fix stated |
| Cisco Firepower Threat Defense Software 6.7 | 6.7.0 → 6.7.0.3 | No fix stated |
| Cisco Firepower Threat Defense Software 6.6 | 6.6.0 → 6.6.5 | No fix stated |
| Cisco Firepower Threat Defense Software 6.4 | 6.4.0 → 6.4.0.12 | No fix stated |
| Cisco Firepower Threat Defense Software 6.2 | 6.2.3 → 6.2.3.18 | No fix stated |
Show the 10 other branches Hide the 10 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco UTD SNORT IPS Engine Software | 17.7.1a | No fix stated |
| Cisco UTD SNORT IPS Engine Software | 17.6.1a | No fix stated |
| Cisco UTD SNORT IPS Engine Software 17.5 | 17.5.1a → 17.5.1 | No fix stated |
| Cisco UTD SNORT IPS Engine Software 17.4 | 17.4.1a → 17.4.2 | No fix stated |
| Cisco UTD SNORT IPS Engine Software 17.3 | 17.3.1a → 17.3.4 | No fix stated |
| Cisco UTD SNORT IPS Engine Software | 17.2.1r | No fix stated |
| Cisco UTD SNORT IPS Engine Software | 17.1.1 | No fix stated |
| Cisco UTD SNORT IPS Engine Software 16.12 | 16.12.1a → 16.12.6 | No fix stated |
| Cisco UTD SNORT IPS Engine Software 16.6 | 16.6.1 → 16.6.10 | No fix stated |
| Cisco UTD SNORT IPS Engine Software 3.17 | 3.17.0S → 3.17.1S | No fix stated |
References
- cisco-sa-snort-dos-9D3hJLuj sec.cloudapps.cisco.com
- sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Timeline
- Published
- Last modified
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