Cisco NX-OS Software Bash Shell Role-Based Access Control Bypass Privilege Escalation Vulnerability
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 7.0(3)I7(4), 7.0(3)F3(5), 8.2(3), 13.2(4d), 14.0(1h), and 1 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to escalate their privilege level by executing commands authorized to other user roles. The attacker must authenticate with valid user credentials. The vulnerability is due to the incorrect implementation of a Bash shell command that allows role-based access control (RBAC) to be bypassed. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the Bash prompt. A successful exploit could allow the attacker to escalate their privilege level by executing commands that should be restricted to other roles. For example, a dev-ops user could escalate their privilege level to admin with a successful exploit of this vulnerability.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Cisco Nexus 3000 Series Switches
fixed in 7.0(3)I7(4)
- Cisco Nexus 3500 Platform Switches
fixed in 7.0(3)I7(4)
- Cisco Nexus 3600 Platform Switches
fixed in 7.0(3)F3(5)
- Cisco Nexus 7000 and 7700 Series Switches
fixed in 8.2(3)
- Cisco Nexus 9000 Series Fabric Switches in ACI Mode
fixed in 13.2(4d); fixed in 14.0(1h)
- Cisco Nexus 9000 Series Switches in Standalone NX-OS Mode
fixed in 7.0(3)I4(9); fixed in 7.0(3)I7(4)