Vulnerability in Cisco Firepower Threat Defense Software
CVE-2019-1833
A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) protocol parser of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured policies. The vulnerability is due to improper parsing of specific attributes in a TLS packet header. An attacker could exploit this vulnerability by sending malicious TLS messages to the affected system. A successful exploit could allow the attacker to bypass the configured policies for the system, which could allow traffic to flow through without being inspected.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.017 (76.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Cisco Firepower Threat Defense Software — versions unspecified
- Cisco Secure Firewall Management Center — versions 6.1.0, 6.2.0, 6.2.1
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515… (vendor-advisory, Vendor Advisory)
- www.securityfocus.com/bid/108338 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2019-1833?
- CVE-2019-1833 is a medium-severity vulnerability in Cisco Firepower Threat Defense Software, classified under Protection Mechanism Failure. CVSS score: 5.8/10. Published 2019-05-16.
- How severe is CVE-2019-1833?
- Medium severity. CVSS v3 base score is 5.8 out of 10.