CVE-2017-6773

low-risk
Published 2017-08-17

A vulnerability in the CLI of Cisco ASR 5000 Series Aggregated Services Routers running the Cisco StarOS operating system could allow an authenticated, local attacker to bypass the CLI restrictions and execute commands on the underlying operating system. The vulnerability is due to insufficient input sanitization of user-supplied input at the CLI. An attacker could exploit this vulnerability by crafting a script on the device that will allow them to bypass built-in restrictions. An exploit could allow the unauthorized user to launch the CLI directly from a command shell. Cisco Bug IDs: CSCvd47722. Known Affected Releases: 21.0.v0.65839.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.7/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Asr 5000 Software

Affected Vendors

Cisco

References (6)

Third Party Advisory http://www.securityfocus.com/bid/100376
Third Party Advisory http://www.securitytracker.com/id/1039181
Vendor Advisory https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2...
Third Party Advisory http://www.securityfocus.com/bid/100376
Third Party Advisory http://www.securitytracker.com/id/1039181
Vendor Advisory https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2...
26
/ 100
low-risk
Severity 21/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal