High severity · published Oct 27, 2021
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…
8.1
CVSS
2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FM
Firepower Management Center Virtual Appliance · Cisco
6.2.3; 6.4.0; 6.5.0; 6.6.1; 6.6.2; 6.6.3; +4 more · source: NVD
SF
Secure Firewall Threat Defense · Cisco
before 6.4.0.13; 6.5.0 before 6.6.5; 6.7.0 before 6.7.0.3; 7.0.0 before 7.0.1 · source: NVD
SD
Sourcefire Defense Center · Cisco
6.2.3; 6.4.0; 6.5.0; 6.6.1; 6.6.2; 6.6.3; +2 more · source: NVD
Affected product
FM
Firepower Management Center Virtual Appliance
Cisco
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