CVE-2023-20051
Cisco Packet Data Network Gateway IPsec ICMP Denial of Service Vulnerability
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Attend
*SSVC
Descriptions
A vulnerability in the Vector Packet Processor (VPP) of Cisco Packet Data Network Gateway (PGW) could allow an unauthenticated, remote attacker to stop ICMP traffic from being processed over an IPsec connection. This vulnerability is due to the VPP improperly handling a malformed packet. An attacker could exploit this vulnerability by sending a malformed Encapsulating Security Payload (ESP) packet over an IPsec connection. A successful exploit could allow the attacker to stop ICMP traffic over an IPsec connection and cause a denial of service (DoS).
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Attend
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2022-10-27 CVE Reserved
- 2023-04-05 CVE Published
- 2024-10-26 EPSS Updated
- 2024-10-28 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-400: Uncontrolled Resource Consumption
CAPEC
References (1)
| URL | Tag | Source |
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| URL | Date | SRC |
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| URL | Date | SRC |
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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" | Packet Data Network Gateway Search vendor "Cisco" for product "Packet Data Network Gateway" | < 21.28.0 Search vendor "Cisco" for product "Packet Data Network Gateway" and version " < 21.28.0" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 5000 Search vendor "Cisco" for product "Asr 5000" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Packet Data Network Gateway Search vendor "Cisco" for product "Packet Data Network Gateway" | < 21.28.0 Search vendor "Cisco" for product "Packet Data Network Gateway" and version " < 21.28.0" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 5500 Search vendor "Cisco" for product "Asr 5500" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Packet Data Network Gateway Search vendor "Cisco" for product "Packet Data Network Gateway" | < 21.28.0 Search vendor "Cisco" for product "Packet Data Network Gateway" and version " < 21.28.0" | - |
Affected
| in | Cisco Search vendor "Cisco" | Asr 5700 Search vendor "Cisco" for product "Asr 5700" | - | - |
Safe
|