Denial of service in Cisco UTD Snort detection engine



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-20685
CWE-ID CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Cisco UTD Snort IPS Engine Software for IOS XE
Other software / Other software solutions

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Integer overflow

EUVDB-ID: #VU59963

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-20685

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow in the Modbus preprocessor. A remote attacker can send specially crafted traffic through an affected system, trigger integer overflow and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cisco UTD Snort IPS Engine Software for IOS XE: before 16.12.7

CPE2.3 External links

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvz34380
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvz25197


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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