CVE-2024-20508
Cisco UTD Snort IPS Engine Software for Cisco IOS XE Software Security Policy Bypass and Denial of Service Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
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.
CVSS Scores
SSVC
- Decision:Attend
Timeline
- 2023-11-08 CVE Reserved
- 2024-09-25 CVE Published
- 2024-10-04 EPSS Updated
- 2024-11-12 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-122: Heap-based Buffer Overflow
CAPEC
References (1)
URL | Tag | Source |
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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 | ||||||
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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