Vulnerability · Published Feb 26, 2020 · Assigned by cisco

CVE-2020-3166Cisco FXOS Software CLI Arbitrary File Read and Write Vulnerability

Medium 4.2

In plain English

A medium-severity improper input validation in Cisco Firepower Extensible Operating System (FXOS) from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.0)4.2Medium

Exploit odds (30 days)0.3%top 78.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in the CLI of Cisco FXOS Software could allow an authenticated, local attacker to read or write arbitrary files on the underlying operating system (OS). The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by including crafted arguments to a specific CLI command. A successful exploit could allow the attacker to read or write to arbitrary files on the underlying OS.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco Firepower Extensible Operating System (FXOS)	unspecified – before n/a

Weakness: CWE-20 · Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

References

20200226 Cisco FXOS Software CLI Arbitrary File Read and Write Vulnerability vendor-advisory, x_refsource_CISCO