CVE-2017-6774 : A vulnerability in Cisco ASR 5000 Series Aggregated Services Routers running the

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.

Published 2017-08-17 20:29:01

Updated 2019-10-03 00:03:26

Source Cisco Systems, Inc.

View at NVD, CVE.org

Products affected by CVE-2017-6774

Cisco » Asr 5000 Software » Version: 21.0.v0.65839
cpe:2.3:a:cisco:asr_5000_software:21.0.v0.65839:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2017-6774

EPSS FAQ

0.10%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 39 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-6774

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.0	MEDIUM	AV:N/AC:L/Au:S/C:N/I:P/A:N	8.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
5.0	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N	3.1	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Changed Confidentiality: None Integrity: Low Availability: None

CWE ids for CVE-2017-6774

CWE-552 Files or Directories Accessible to External Parties

The product makes files or directories accessible to unauthorized actors, even though they should not be.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2017-6774

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170816-staros2

Cisco StarOS for ASR 5000 Series Routers FTP Configuration File Modification Vulnerability
Vendor Advisory
http://www.securitytracker.com/id/1039182

Cisco StarOS for ASR 5000 Series Routers FTP-Accessible System Files Let Remote Authenticated Users Overwrite or Modify Sensitive System Files - SecurityTracker
Third Party Advisory;VDB Entry
http://www.securityfocus.com/bid/100386

Cisco StarOS for ASR 5000 Series Routers CVE-2017-6774 Arbitrary File Write Vulnerability
Third Party Advisory;VDB Entry

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Vulnerability Details : CVE-2017-6774

Products affected by CVE-2017-6774

Exploit prediction scoring system (EPSS) score for CVE-2017-6774

CVSS scores for CVE-2017-6774

CWE ids for CVE-2017-6774

References for CVE-2017-6774