Cisco NX-OS up to 10.4(2) Bash Shell privilege defined with unsafe actions

Summaryinfo

A vulnerability described as critical has been identified in Cisco NX-OS. The impacted element is an unknown function of the component Bash Shell. Such manipulation leads to privilege defined with unsafe actions. This vulnerability is listed as CVE-2024-20411. The attack must be carried out locally. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Cisco NX-OS and classified as critical. Affected by this issue is an unknown code block of the component Bash Shell. The manipulation with an unknown input leads to a privilege defined with unsafe actions vulnerability. Using CWE to declare the problem leads to CWE-267. A particular privilege, role, capability, or right can be used to perform unsafe actions that were not intended, even when it is assigned to the correct entity. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in Cisco NX-OS Software could allow an authenticated, local attacker with privileges to access the Bash shell to execute arbitrary code as root on an affected device. This vulnerability is due to insufficient security restrictions when executing commands from the Bash shell. An attacker with privileges to access the Bash shell could exploit this vulnerability by executing a specific crafted command on the underlying operating system. A successful exploit could allow the attacker to execute arbitrary code with the privileges of root.

The advisory is shared for download at sec.cloudapps.cisco.com. This vulnerability is handled as CVE-2024-20411 since 11/08/2023. The exploitation is known to be easy. The attack needs to be approached locally. Additional levels of successful authentication are necessary for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/29/2024). The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• NX-OS

Version

• 6.0(2)A6(1)
• 6.0(2)A6(1a)
• 6.0(2)A6(2)
• 6.0(2)A6(2a)
• 6.0(2)A6(3)
• 6.0(2)A6(3a)
• 6.0(2)A6(4)
• 6.0(2)A6(4a)
• 6.0(2)A6(5)
• 6.0(2)A6(5a)
• 6.0(2)A6(5b)
• 6.0(2)A6(6)
• 6.0(2)A6(7)
• 6.0(2)A6(8)
• 6.0(2)A8(1)
• 6.0(2)A8(2)
• 6.0(2)A8(3)
• 6.0(2)A8(4)
• 6.0(2)A8(4a)
• 6.0(2)A8(5)
• 6.0(2)A8(6)
• 6.0(2)A8(7)
• 6.0(2)A8(7a)
• 6.0(2)A8(7b)
• 6.0(2)A8(8)
• 6.0(2)A8(9)
• 6.0(2)A8(10)
• 6.0(2)A8(10a)
• 6.0(2)A8(11)
• 6.0(2)A8(11a)
• 6.0(2)A8(11b)
• 6.0(2)U6(1)
• 6.0(2)U6(1a)
• 6.0(2)U6(2)
• 6.0(2)U6(2a)
• 6.0(2)U6(3)
• 6.0(2)U6(3a)
• 6.0(2)U6(4)
• 6.0(2)U6(4a)
• 6.0(2)U6(5)
• 6.0(2)U6(5a)
• 6.0(2)U6(5b)
• 6.0(2)U6(5c)
• 6.0(2)U6(6)
• 6.0(2)U6(7)
• 6.0(2)U6(8)
• 6.0(2)U6(9)
• 6.0(2)U6(10)
• 6.0(2)U6(10a)
• 7.0(3)F1(1)
• 7.0(3)F2(1)
• 7.0(3)F2(2)
• 7.0(3)F3(1)
• 7.0(3)F3(2)
• 7.0(3)F3(3)
• 7.0(3)F3(3a)
• 7.0(3)F3(3c)
• 7.0(3)F3(4)
• 7.0(3)F3(5)
• 7.0(3)I4(1)
• 7.0(3)I4(1t)
• 7.0(3)I4(2)
• 7.0(3)I4(3)
• 7.0(3)I4(4)
• 7.0(3)I4(5)
• 7.0(3)I4(6)
• 7.0(3)I4(6t)
• 7.0(3)I4(7)
• 7.0(3)I4(8)
• 7.0(3)I4(8a)
• 7.0(3)I4(8b)
• 7.0(3)I4(8z)
• 7.0(3)I4(9)
• 7.0(3)I5(1)
• 7.0(3)I5(2)
• 7.0(3)I5(3)
• 7.0(3)I5(3a)
• 7.0(3)I5(3b)
• 7.0(3)I6(1)
• 7.0(3)I6(2)
• 7.0(3)I7(1)
• 7.0(3)I7(2)
• 7.0(3)I7(3)
• 7.0(3)I7(3z)
• 7.0(3)I7(4)
• 7.0(3)I7(5)
• 7.0(3)I7(5a)
• 7.0(3)I7(6)
• 7.0(3)I7(6z)
• 7.0(3)I7(7)
• 7.0(3)I7(8)
• 7.0(3)I7(9)
• 7.0(3)I7(9w)
• 7.0(3)I7(10)
• 7.0(3)IA7(1)
• 7.0(3)IA7(2)
• 7.0(3)IC4(4)
• 7.0(3)IM3(1)
• 7.0(3)IM3(2)
• 7.0(3)IM3(2a)
• 7.0(3)IM3(2b)
• 7.0(3)IM3(3)
• 7.0(3)IM7(2)
• 9.2(1)
• 9.2(2)
• 9.2(2t)
• 9.2(2v)
• 9.2(3)
• 9.2(3y)
• 9.2(4)
• 9.3(1)
• 9.3(1z)
• 9.3(2)
• 9.3(3)
• 9.3(4)
• 9.3(5)
• 9.3(5w)
• 9.3(6)
• 9.3(7)
• 9.3(7a)
• 9.3(7k)
• 9.3(8)
• 9.3(9)
• 9.3(10)
• 9.3(11)
• 9.3(12)
• 9.3(13)
• 10.1(1)
• 10.1(2)
• 10.1(2t)
• 10.2(1)
• 10.2(1q)
• 10.2(2)
• 10.2(2a)
• 10.2(3)
• 10.2(3t)
• 10.2(3v)
• 10.2(4)
• 10.2(5)
• 10.2(6)
• 10.2(7)
• 10.3(1)
• 10.3(2)
• 10.3(3)
• 10.3(3o)
• 10.3(3p)
• 10.3(3q)
• 10.3(3r)
• 10.3(3w)
• 10.3(3x)
• 10.3(4)
• 10.3(4a)
• 10.3(4g)
• 10.3(99w)
• 10.3(99x)
• 10.4(1)
• 10.4(2)

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

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