Network-admin escalation via unrestricted Bash application arguments
Published Aug 28, 2024 · Updated Aug 30, 2024
Privilege escalation in Cisco NX-OS Software allows local users with Bash access to create accounts with network-admin privileges. The Bash application-argument execution path applies insufficient security restrictions to crafted commands, permitting unauthorized account creation. Exploitation requires authenticated access to the Bash shell on a vulnerable Nexus 3000 or standalone-mode Nexus 9000 switch; Bash itself is disabled by default, although a Bash login shell can remain configured.
Summary
What happened
Privilege escalation in Cisco NX-OS Software allows local users with Bash access to create accounts with network-admin privileges. The Bash application-argument execution path applies insufficient security restrictions to crafted commands, permitting unauthorized account creation. Exploitation requires authenticated access to the Bash shell on a vulnerable Nexus 3000 or standalone-mode Nexus 9000 switch; Bash itself is disabled by default, although a Bash login shell can remain configured.
The record
- CVE
- CVE-2024-20413
- Published
- Aug 28, 2024
- Updated
- Aug 30, 2024
- Vendor
- ClamAV
- Product
- Cisco NX-OS Software
- Classifications
- CWE-862, T1136
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Aug 28, 2024CVE publishedPublication date reported by the CVE source.
- Aug 30, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.1(1)
- Affected versionversion=10.1(2)
- Affected versionversion=10.1(2t)
- Affected versionversion=10.2(1)
- Affected versionversion=10.2(1q)
- Affected versionversion=10.2(2)
- Affected versionversion=10.2(2a)
- Affected versionversion=10.2(3)
- Affected versionversion=10.2(3t)
- Affected versionversion=10.2(3v)
- Affected versionversion=10.2(4)
- Affected versionversion=10.2(5)
- Affected versionversion=10.2(6)
- Affected versionversion=10.2(7)
- Affected versionversion=10.3(1)
- Affected versionversion=10.3(2)
- Affected versionversion=10.3(3)
- Affected versionversion=10.3(3o)
- Affected versionversion=10.3(3p)
- Affected versionversion=10.3(3q)
- Affected versionversion=10.3(3r)
- Affected versionversion=10.3(3w)
- Affected versionversion=10.3(3x)
- Affected versionversion=10.3(4)
- Affected versionversion=10.3(4a)
- Affected versionversion=10.3(4g)
- Affected versionversion=10.3(5)
- Affected versionversion=10.3(99w)
- Affected versionversion=10.3(99x)
- Affected versionversion=10.4(1)
- Affected versionversion=10.4(2)
- Affected versionversion=10.4(3)
- Affected versionversion=6.0(2)A6(1)
- Affected versionversion=6.0(2)A6(1a)
- Affected versionversion=6.0(2)A6(2)
- Affected versionversion=6.0(2)A6(2a)
- Affected versionversion=6.0(2)A6(3)
- Affected versionversion=6.0(2)A6(3a)
- Affected versionversion=6.0(2)A6(4)
- Affected versionversion=6.0(2)A6(4a)
- Affected versionversion=6.0(2)A6(5)
- Affected versionversion=6.0(2)A6(5a)
- Affected versionversion=6.0(2)A6(5b)
- Affected versionversion=6.0(2)A6(6)
- Affected versionversion=6.0(2)A6(7)
- Affected versionversion=6.0(2)A6(8)
- Affected versionversion=6.0(2)A8(1)
- Affected versionversion=6.0(2)A8(10)
- Affected versionversion=6.0(2)A8(10a)
- Affected versionversion=6.0(2)A8(11)
- Affected versionversion=6.0(2)A8(11a)
- Affected versionversion=6.0(2)A8(11b)
- Affected versionversion=6.0(2)A8(2)
- Affected versionversion=6.0(2)A8(3)
- Affected versionversion=6.0(2)A8(4)
- Affected versionversion=6.0(2)A8(4a)
- Affected versionversion=6.0(2)A8(5)
- Affected versionversion=6.0(2)A8(6)
- Affected versionversion=6.0(2)A8(7)
- Affected versionversion=6.0(2)A8(7a)
- Affected versionversion=6.0(2)A8(7b)
- Affected versionversion=6.0(2)A8(8)
- Affected versionversion=6.0(2)A8(9)
- Affected versionversion=6.0(2)U6(1)
- Affected versionversion=6.0(2)U6(10)
- Affected versionversion=6.0(2)U6(10a)
- Affected versionversion=6.0(2)U6(1a)
- Affected versionversion=6.0(2)U6(2)
- Affected versionversion=6.0(2)U6(2a)
- Affected versionversion=6.0(2)U6(3)
- Affected versionversion=6.0(2)U6(3a)
- Affected versionversion=6.0(2)U6(4)
- Affected versionversion=6.0(2)U6(4a)
- Affected versionversion=6.0(2)U6(5)
- Affected versionversion=6.0(2)U6(5a)
- Affected versionversion=6.0(2)U6(5b)
- Affected versionversion=6.0(2)U6(5c)
- Affected versionversion=6.0(2)U6(6)
- Affected versionversion=6.0(2)U6(7)
- Affected versionversion=6.0(2)U6(8)
- Affected versionversion=6.0(2)U6(9)
- Affected versionversion=7.0(3)F1(1)
- Affected versionversion=7.0(3)F2(1)
- Affected versionversion=7.0(3)F2(2)
- Affected versionversion=7.0(3)F3(1)
- Affected versionversion=7.0(3)F3(2)
- Affected versionversion=7.0(3)F3(3)
- Affected versionversion=7.0(3)F3(3a)
- Affected versionversion=7.0(3)F3(3c)
- Affected versionversion=7.0(3)F3(4)
- Affected versionversion=7.0(3)F3(5)
- Affected versionversion=7.0(3)I4(1)
- Affected versionversion=7.0(3)I4(1t)
- Affected versionversion=7.0(3)I4(2)
- Affected versionversion=7.0(3)I4(3)
- Affected versionversion=7.0(3)I4(4)
- Affected versionversion=7.0(3)I4(5)
- Affected versionversion=7.0(3)I4(6)
- Affected versionversion=7.0(3)I4(6t)
- Affected versionversion=7.0(3)I4(7)
- Affected versionversion=7.0(3)I4(8)
- Affected versionversion=7.0(3)I4(8a)
- Affected versionversion=7.0(3)I4(8b)
- Affected versionversion=7.0(3)I4(8z)
- Affected versionversion=7.0(3)I4(9)
- Affected versionversion=7.0(3)I5(1)
- Affected versionversion=7.0(3)I5(2)
- Affected versionversion=7.0(3)I5(3)
- Affected versionversion=7.0(3)I5(3a)
- Affected versionversion=7.0(3)I5(3b)
- Affected versionversion=7.0(3)I6(1)
- Affected versionversion=7.0(3)I6(2)
- Affected versionversion=7.0(3)I7(1)
- Affected versionversion=7.0(3)I7(10)
- Affected versionversion=7.0(3)I7(2)
- Affected versionversion=7.0(3)I7(3)
- Affected versionversion=7.0(3)I7(3z)
- Affected versionversion=7.0(3)I7(4)
- Affected versionversion=7.0(3)I7(5)
- Affected versionversion=7.0(3)I7(5a)
- Affected versionversion=7.0(3)I7(6)
- Affected versionversion=7.0(3)I7(6z)
- Affected versionversion=7.0(3)I7(7)
- Affected versionversion=7.0(3)I7(8)
- Affected versionversion=7.0(3)I7(9)
- Affected versionversion=7.0(3)I7(9w)
- Affected versionversion=7.0(3)IA7(1)
- Affected versionversion=7.0(3)IA7(2)
- Affected versionversion=7.0(3)IC4(4)
- Affected versionversion=7.0(3)IM3(1)
- Affected versionversion=7.0(3)IM3(2)
- Affected versionversion=7.0(3)IM3(2a)
- Affected versionversion=7.0(3)IM3(2b)
- Affected versionversion=7.0(3)IM3(3)
- Affected versionversion=7.0(3)IM7(2)
- Affected versionversion=9.2(1)
- Affected versionversion=9.2(2)
- Affected versionversion=9.2(2t)
- Affected versionversion=9.2(2v)
- Affected versionversion=9.2(3)
- Affected versionversion=9.2(3y)
- Affected versionversion=9.2(4)
- Affected versionversion=9.3(1)
- Affected versionversion=9.3(10)
- Affected versionversion=9.3(11)
- Affected versionversion=9.3(12)
- Affected versionversion=9.3(13)
- Affected versionversion=9.3(1z)
- Affected versionversion=9.3(2)
- Affected versionversion=9.3(3)
- Affected versionversion=9.3(4)
- Affected versionversion=9.3(5)
- Affected versionversion=9.3(5w)
- Affected versionversion=9.3(6)
- Affected versionversion=9.3(7)
- Affected versionversion=9.3(7a)
- Affected versionversion=9.3(7k)
- Affected versionversion=9.3(8)
- Affected versionversion=9.3(9)
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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