Vulnerability · Published Oct 6, 2021 · Assigned by cisco

CVE-2021-34711Cisco IP Phone Software Arbitrary File Read Vulnerability

Medium 5.5

In plain English

A medium-severity security flaw in Cisco IP Phones with Multiplatform Firmware 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 19% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.3%top 81.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in the debug shell of Cisco IP Phone software could allow an authenticated, local attacker to read any file on the device file system. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by providing crafted input to a debug shell command. A successful exploit could allow the attacker to read any file on the device file system.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco IP Phones with Multiplatform Firmware	n/a

Weakness: CWE-36 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

20211006 Cisco IP Phone Software Arbitrary File Read Vulnerability vendor-advisory, x_refsource_CISCO