RCE in Cisco Nexus 5548up
CVE-2017-6649
A vulnerability in the CLI 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 a vulnerable 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: CSCvb86787, CSCve60516, CSCve60555.
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 (60.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.2% 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/98531 (VDB Entry, Third Party Advisory, vdb-entry)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517… (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-6649?
- CVE-2017-6649 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-2017-6649?
- High severity. CVSS v3 base score is 7.8 out of 10.