PT-2019-1724 · Cisco · Cisco Ip Phone 8800 Series

David Gullasch · Published 2019-03-20 · Updated 2023-03-24 · CVE-2019-1766

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Cisco IP Phone 8800 Series versions prior to 12.5(1)SR1

Description A vulnerability in the web-based management interface of the Session Initiation Protocol (SIP) Software for Cisco IP Phone 8800 Series could allow an unauthenticated, remote attacker to cause high disk utilization, resulting in a denial of service (DoS) condition. The issue exists due to the software not restricting the maximum size of certain files that can be written to disk. An attacker with valid administrator credentials could exploit this by sending a crafted, remote connection request to an affected system, allowing them to write a file that consumes most of the available disk space, causing application functions to operate abnormally and leading to a DoS condition.

Recommendations For versions prior to 12.5(1)SR1, update to version 12.5(1)SR1 or later to resolve the issue. As a temporary workaround, consider restricting access to the web-based management interface to minimize the risk of exploitation. Avoid using the interface for remote connections until the issue is resolved.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2019-01349

CVE-2019-1766

Affected Products

Cisco Ip Phone 8800 Series

References · 4

• https://bdu.fstec.ru/vul/2019-01349 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190320-ipfudos · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-1766 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-1766 · Security Note