Improper input validation in Cisco Unified Computing System Director
CVE-2019-1936
A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an authenticated, remote attacker to execute arbitrary commands on the underlying Linux shell as the root user. Exploitation of this vulnerability requires privileged access to an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface. An attacker could exploit this vulnerability by logging in to the web-based management interface with administrator privileges and then sending a malicious request to a certain part of the interface.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.395 (98.6th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.395 · newest: 0.395 · change: 0.000
Affected products
- Cisco Unified Computing System Director — versions unspecified
- Cisco Integrated Management Controller Supervisor — versions 2.1.0.0
- Cisco Ucs Director — versions 6.6.1.0, 6.6.0.0, 6.7(0.0.67265)
- Cisco Ucs Director Express For Big Data — versions 3.0.0.0, 3.5.0.0, 3.6.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190821… (vendor-advisory, Vendor Advisory)
- seclists.org/bugtraq/2019/Aug/49 (mailing-list, Exploit, Mailing List, Third Party Advisory, Broken Link)
- packetstormsecurity.com/files/154239/Cisco-UCS-IMC-Supervisor-Authentication-By… (Exploit, VDB Entry, Third Party Advisory)
- seclists.org/fulldisclosure/2019/Aug/36 (mailing-list, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/154308/Cisco-UCS-Director-Unauthenticated-Remote-… (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-1936?
- CVE-2019-1936 is a high-severity vulnerability in Cisco Unified Computing System Director, classified under Improper Input Validation. CVSS score: 7.2/10. Published 2019-08-21.
- How severe is CVE-2019-1936?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2019-1936 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.