CVE-2024-20508
Cisco UTD Snort IPS Engine Software for Cisco IOS XE Software Security Policy Bypass and Denial of Service Vulnerability
Severity Score
5.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A vulnerability in Cisco Unified Threat Defense (UTD) Snort Intrusion Prevention System (IPS) Engine for Cisco IOS XE Software could allow an unauthenticated, remote attacker to bypass configured security policies or cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to insufficient validation of HTTP requests when they are processed by Cisco UTD Snort IPS Engine. An attacker could exploit this vulnerability by sending a crafted HTTP request through an affected device. A successful exploit could allow the attacker to trigger a reload of the Snort process. If the action in case of Cisco UTD Snort IPS Engine failure is set to the default, fail-open, successful exploitation of this vulnerability could allow the attacker to bypass configured security policies. If the action in case of Cisco UTD Snort IPS Engine failure is set to fail-close, successful exploitation of this vulnerability could cause traffic that is configured to be inspected by Cisco UTD Snort IPS Engine to be dropped.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-11-08 CVE Reserved
- 2024-09-25 CVE Published
- 2024-09-25 CVE Updated
- 2024-10-04 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-122: Heap-based Buffer Overflow
CAPEC
References (1)
| URL | Tag | Source |
|---|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-utd-snort3-dos-bypas-b4OUEwxD |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.12.1 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.12.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.12.2 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.12.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.13.1 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.13.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.12.3 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.12.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.12.3 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.12.3" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.15.1 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.15.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.9.5 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.9.5" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.6.1 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.6.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.8.1 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.8.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.6.2 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.6.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.7.2 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.7.2" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.12.4 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.12.4" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.14.1 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.14.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.11.1 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.11.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.7.1 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.7.1" | en |
Affected
| ||||||
| Cisco Search vendor "Cisco" | Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" | 17.6.6 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.6.6" | en |
Affected
| ||||||