RCE in Cisco Nexus 5548up
CVE-2017-6650
A vulnerability in the Telnet CLI command of Cisco NX-OS System Software 7.1 through 7.3 running on Cisco Nexus Series Switches could allow an authenticated, local attacker to perform a command injection attack. The vulnerability is due to insufficient input validation of command arguments. An attacker could exploit this vulnerability by injecting crafted command arguments into the Telnet CLI command. An exploit could allow the attacker to read or write arbitrary files at the user's privilege level outside of the user's path. Cisco Bug IDs: CSCvb86771.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Cisco Nexus 5548up
- Cisco Nexus 5596t
- Cisco Nexus 5596up
- Cisco Nexus 56128p
- Cisco Nexus 5624q
- Cisco Nexus 5648q
- Cisco Nexus 5672up
- Cisco Nexus 5672up-16g
- Cisco Nexus 5696q
- Cisco Nx-Os — versions 7.3\(0\)n1\(1\), 7.1\(2\)n1\(1\), 7.1(3)n1(1)
Weakness classification (CWE)
References
- www.securitytracker.com/id/1038518 (vdb-entry)
- www.securityfocus.com/bid/98528 (Third Party Advisory, vdb-entry, Vendor Advisory)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517… (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-6650?
- CVE-2017-6650 is a high-severity vulnerability in Cisco Nexus 5548up, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2017-05-22.
- How severe is CVE-2017-6650?
- High severity. CVSS v3 base score is 7.8 out of 10.