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Fencer Vulns
medium 6.5

CVE-2022-20828 json

Cisco FirePOWER Software for ASA FirePOWER Module Command Injection Vulnerability

published 2022-06-24 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-26078

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
49.3%
EPSS 49.3% chance of exploitation in 30 days, percentile 98%
public exploits
1
Metasploit

Summary

A vulnerability in the CLI parser of Cisco FirePOWER Software for Adaptive Security Appliance (ASA) FirePOWER module could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected ASA FirePOWER module as the root user. This vulnerability is due to improper handling of undefined command parameters. An attacker could exploit this vulnerability by using a crafted command on the CLI or by submitting a crafted HTTPS request to the web-based management interface of the Cisco ASA that is hosting the ASA FirePOWER module. Note: To exploit this vulnerability, the attacker must have administrative access to the Cisco ASA. A user who has administrative access to a particular Cisco ASA is also expected to have administrative access to the ASA FirePOWER module that is hosted by that Cisco ASA.

Patch / fix

  • cisco asa_firepower 6.2.3.19, 6.4.0.15, 6.6.7, 7.0.2.1

Timeline

  1. First public exploit (Metasploit exploit/linux/http/cisco_asax_sfr_rce)
  2. Published

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

49.29% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/linux/http/cisco_asax_sfr_rce Cisco ASA-X with FirePOWER Services Authenticated Command Injection metasploit exploit, excellent rank, 2022-06-22
  • rapid7.com https://www.rapid7.com/blog/post/2022/08/11/rapid7-discovered-vulnerabilities-in-cisco-asa-asdm-and-firepower-services-software/ referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/168256/Cisco-ASA-X-With-FirePOWER-Services-Authenticated-Command-Injection.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
NVD 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C

Affected products

  • Cisco Cisco FirePOWER Services Software for ASA

Classification

Weakness
  • CWE-236 Improper Handling of Undefined Parameters

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.