CVE-2017-6774

Name: CVE-2017-6774
Creator: NVD / NIST
Published: 2017-08-17T20:29:00.557+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.17%

Last modified Jun 17, 2026

CVE-2017-6774 is a vulnerability of currently unknown severity. A vulnerability in Cisco ASR 5000 Series Aggregated Services Routers running the Cisco StarOS operating system could allow an authenticated, remote attacker to overwrite or modify sensitive system files. The vulnerability is due to the inclusion of sensitive system files within specific FTP subdirectories. EPSS estimates a 1.17% chance of exploitation in the next 30 days.

Description

A vulnerability in Cisco ASR 5000 Series Aggregated Services Routers running the Cisco StarOS operating system could allow an authenticated, remote attacker to overwrite or modify sensitive system files. The vulnerability is due to the inclusion of sensitive system files within specific FTP subdirectories. An attacker could exploit this vulnerability by overwriting sensitive configuration files through FTP. An exploit could allow the attacker to overwrite configuration files on an affected system. Cisco Bug IDs: CSCvd47739. Known Affected Releases: 21.0.v0.65839.

Metrics

EPSS Probability

1.17%

63.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-552

Affected Software

Vendor	Product	Versions
Cisco	Asr 5000 Software	21.0.v0.65839

References

http://www.securityfocus.com/bid/100386Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039182Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170816-staros2Vendor Advisory
http://www.securityfocus.com/bid/100386Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039182Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170816-staros2Vendor Advisory

Timeline

Published: Aug 17, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-6774?

How severe is CVE-2017-6774?

Severity scoring for CVE-2017-6774 is pending analysis. The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.

How do I fix CVE-2017-6774?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-6774?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST