Improper input validation in Cisco Asr 5000
CVE-2020-3244
A vulnerability in the Enhanced Charging Service (ECS) functionality of Cisco ASR 5000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to bypass the traffic classification rules on an affected device. The vulnerability is due to insufficient input validation of user traffic going through an affected device. An attacker could exploit this vulnerability by sending a malformed HTTP request to an affected device. A successful exploit could allow the attacker to bypass the traffic classification rules and potentially avoid being charged for traffic consumption.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.010 (60.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3244?
- CVE-2020-3244 is a medium-severity vulnerability in Cisco Asr 5000, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2020-06-18.
- How severe is CVE-2020-3244?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2020-3244 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.