A vulnerability in Cisco ASR 5000 Series Aggregated Services Routers running the Cisco StarOS operating system could allow an authenticated…

Published 9 y ago 2017-08-17 · modified 4 mo ago 2026-06-17 · JSON

CVSS

5.0

v3.0 · NVD

CISA KEV

not known exploited

EPSS

1.2%

percentile 68%

Public exploits

none known

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.

Exploit prediction (EPSS)

1.17% probability of exploitation in the next 30 days, higher than 68% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
NVD	3.0	5.0	`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N`
NVD	2.0	4.0	`AV:N/AC:L/Au:S/C:N/I:P/A:N`

Affected products

Cisco Systems, Inc. StarOS for ASR 5000 Series Aggregated Services Routers

Classification

Weakness

CWE-552 Files or Directories Accessible to External Parties

References

tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20170816-staros2 · vendor-advisory, x_refsource_CISCO, x_transferred
securityfocus.com /bid/100386 · vdb-entry, x_refsource_BID, x_transferred
securitytracker.com /id/1039182 · vdb-entry, x_refsource_SECTRACK, x_transferred

Sources

CVE List: CVE-2017-6774
NVD: CVE-2017-6774

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