Improper input validation in Cisco Ip Phone 8800 Series Software

CVE-2019-1766

A vulnerability in the web-based management interface of 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 vulnerability exists because the affected software does not restrict the maximum size of certain files that can be written to disk. An attacker who has valid administrator credentials for an affected system could exploit this vulnerability by sending a crafted, remote connection request to an affected system. A successful exploit could allow the attacker to write a file that consumes most of the available disk space on the system, causing application functions to operate abnormally and leading to a DoS condition. This vulnerability affects Cisco IP Phone 8800 Series products running a SIP Software release prior to 12.5(1)SR1.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.015 (73.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-1766?
CVE-2019-1766 is a high-severity vulnerability in Cisco Ip Phone 8800 Series Software, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-03-22.
How severe is CVE-2019-1766?
High severity. CVSS v3 base score is 7.5 out of 10.