CVE-2017-6774 Path traversal in StarOS for ASR 5000 Series Aggregated Services Routers
Authenticated remote attackers can overwrite sensitive configuration files via FTP on Cisco ASR 5000 routers, potentially leading to system compromise.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-6774?
CVE-2017-6774 is a medium-severity path traversal vulnerability in Cisco Systems, Inc. StarOS for ASR 5000 Series Aggregated Services Routers, published on 17 Aug 2017. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-552
Which versions are affected by CVE-2017-6774?
It affects 1 product.
Products include Cisco Asr 5000 Software.
How do I fix CVE-2017-6774?
No fix has been published for CVE-2017-6774 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2017-6774 being exploited?
There is no known exploitation of CVE-2017-6774 in the wild and no public exploit code.
Other vulnerabilities in Cisco Systems, Inc. StarOS for ASR 5000 Series Aggregated Services Routers
- CVE-2017-6729 Denial of service in Cisco StarOS
- CVE-2016-6455 Denial of service in Cisco StarOS 18.x through 21.x
- CVE-2016-1436 Denial of service in n/a
- CVE-2017-6773 Command injection in StarOS for ASR 5000 Series Aggregated Services Routers
- CVE-2017-6775 Privilege escalation in StarOS for ASR 5000 Series Aggregated Services Routers
Sources
Also known as GHSA-q3m2-fp75-5458.