Vulnerability in Cisco 1100-4p
CVE-2020-3299
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured File Policy for HTTP. The vulnerability is due to incorrect detection of modified HTTP packets used in chunked responses. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass a configured File Policy for HTTP packets and deliver a malicious payload.
EPSS: 0.023 (82.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@cisco.com (vendor-advisory, Vendor Advisory)
- psirt@cisco.com (mailing-list)
- psirt@cisco.com (vendor-advisory)
Frequently asked questions
- What is CVE-2020-3299?
- CVE-2020-3299 is a medium-severity vulnerability in Cisco 1100-4p, classified under Protection Mechanism Failure. CVSS score: 5.8/10. Published 2020-10-21.
- How severe is CVE-2020-3299?
- Medium severity. CVSS v3 base score is 5.8 out of 10.
- Is CVE-2020-3299 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.