Auth bypass in Cisco Identity Services Engine
CVE-2017-12261
A vulnerability in the restricted shell of the Cisco Identity Services Engine (ISE) that is accessible via SSH could allow an authenticated, local attacker to run arbitrary CLI commands with elevated privileges. The vulnerability is due to incomplete input validation of the user input for CLI commands issued at the restricted shell. An attacker could exploit this vulnerability by authenticating to the targeted device and executing commands that could lead to elevated privileges. An attacker would need valid user credentials to the device to exploit this vulnerability. The vulnerability affects the following Cisco Identity Services Engine (ISE) products running Release 1.4, 2.0, 2.0.1, 2.1.0: ISE, ISE Express, ISE Virtual Appliance. Cisco Bug IDs: CSCve74916.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (22.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Cisco Identity Services Engine — versions 1.4, 2.0, 2.0.1
- Cisco Identity Services Engine Express — versions 1.4, 2.0, 2.0.1
- Cisco Identity Services Engine Virtual Appliance — versions 1.4, 2.0, 2.0.1
- Cisco Identity Services Engine — versions Cisco Identity Services Engine
Weakness classification (CWE)
References
- www.securityfocus.com/bid/101641 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1039717 (VDB Entry, Third Party Advisory, vdb-entry)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101… (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-12261?
- CVE-2017-12261 is a high-severity vulnerability in Cisco Identity Services Engine, classified under CWE-264. CVSS score: 7.8/10. Published 2017-11-02.
- How severe is CVE-2017-12261?
- High severity. CVSS v3 base score is 7.8 out of 10.