SB2020062317 - Input validation error in Cisco ASR 5000 Series Aggregation Services Routers
Published: June 23, 2020
Security Bulletin ID
SB2020062317
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2020-3244)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to insufficient validation of user-supplied input in the Enhanced Charging Service (ECS) functionality. A remote attacker can send a specially crafted HTTP request, bypass the traffic classification rules and potentially avoid being charged for traffic consumption.
Remediation
Install update from vendor's website.