Path Traversal in Cisco Firepower Management Center
CVE-2021-34762
A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to perform a directory traversal attack on an affected device. The attacker would require valid device credentials. The vulnerability is due to insufficient input validation of the HTTPS URL by the web-based management interface. An attacker could exploit this vulnerability by sending a crafted HTTPS request that contains directory traversal character sequences to an affected device. A successful exploit could allow the attacker to read or write arbitrary files on the device.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.020 (80.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: +0.000
Affected products
- Cisco Firepower Management Center
- Cisco Firepower Management Center Virtual Appliance — versions 6.2.3, 6.4.0, 6.5.0
- Cisco Firepower Threat Defense
- Cisco Secure Firewall Threat Defense
- Cisco Sourcefire Defense Center — versions 6.2.3, 6.4.0, 6.5.0
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-dir-… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-34762?
- CVE-2021-34762 is a high-severity vulnerability in Cisco Firepower Management Center, classified under CWE-26. CVSS score: 8.1/10. Published 2021-10-27.
- How severe is CVE-2021-34762?
- High severity. CVSS v3 base score is 8.1 out of 10.