#VU87520 Improper access control in Cisco Systems, Inc products - CVE-2024-20315


Vulnerability identifier: #VU87520

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-20315

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco IOS XR
Operating systems & Components / Operating system
IOS XR White box
Operating systems & Components / Operating system package or component
Cisco 8000 Series Routers
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco 8201 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco 8202 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco 8808 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco 8812 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco 8818 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco ASR 9000 Series Aggregation Services Routers
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco ASR 9006 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco ASR 9010 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco ASR 9901 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco ASR 9902 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco ASR 9903 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco ASR 9904 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco ASR 9906 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco ASR 9910 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco ASR 9912 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco IOS XRv 9000 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540-12Z20G-SYS-A Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540-12Z20G-SYS-D Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540-24Q8L2DD-SYS Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540-24Z8Q2C-SYS Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540-28Z4C-SYS-A Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540-28Z4C-SYS-D Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540-6Z14S-SYS-D Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540-6Z18G-SYS-D Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540-ACC-SYS Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540-FH-AGG Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540-FH-CSR-SYS Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540X-12Z16G-SYS-A Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540X-12Z16G-SYS-D Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540X-16Z4G8Q2C-A Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540X-16Z4G8Q2C-D Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540X-16Z8Q2C-D Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540X-4Z14G2Q-A Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540X-4Z14G2Q-D Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540X-6Z18G-SYS-A Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540X-6Z18G-SYS-D Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540X-8Z16G-SYS-A Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540X-8Z16G-SYS-D Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 540X-ACC-SYS Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 560-4-SYS Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 560-4-SYS-E Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 560-4-SYS-E-CC Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 560-7-SYS Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco NCS 560-7-SYS-E Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 1001
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 1002
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 1004
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 1010
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 500 Series Routers
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 5000 Series
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 5001
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 5002
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 5011
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 540 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 540 Series Routers
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 5500 Series
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 5501
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 5501-SE
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 5502
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 5502-SE
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 5504
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 5508
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 5516
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 55A1-24H
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 55A1-24Q6H-S
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 55A1-24Q6H-SS
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 55A1-36H
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 55A1-36H-SE
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 55A1-48Q6H
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 55A2-MOD-HD-S
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 55A2-MOD-S
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 55A2-MOD-SE-S
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 560 Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 560 Series Routers
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 5700 Series
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 57B1-5DSE-SYS
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 57B1-6D24-SYS
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System 57C3-MOD
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System NCS-57C1-48Q6-SYS
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Network Convergence System NCS-57D2-18DD-SYS
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco ASR 9922 Router
Client/Desktop applications / Software for system administration
Cisco Network Convergence System 1000 Series
Hardware solutions / Firmware

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper assignment of lookup keys to internal interface contexts. A remote attacker can access resources behind the affected device that are supposed to be protected by a configured ACL.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco IOS XR: 7.9.1 - 7.9.2, 7.10.1

IOS XR White box: All versions

Cisco 8000 Series Routers: All versions

Cisco 8201 Router: All versions

Cisco 8202 Router: All versions

Cisco 8808 Router: All versions

Cisco 8812 Router: All versions

Cisco 8818 Router: All versions

Cisco ASR 9000 Series Aggregation Services Routers: All versions

Cisco ASR 9006 Router: All versions

Cisco ASR 9010 Router: All versions

Cisco ASR 9901 Router: All versions

Cisco ASR 9902 Router: All versions

Cisco ASR 9903 Router: All versions

Cisco ASR 9904 Router: All versions

Cisco ASR 9906 Router: All versions

Cisco ASR 9910 Router: All versions

Cisco ASR 9912 Router: All versions

Cisco ASR 9922 Router: All versions

Cisco IOS XRv 9000 Router: All versions

Cisco NCS 540-12Z20G-SYS-A Router: All versions

Cisco NCS 540-12Z20G-SYS-D Router: All versions

Cisco NCS 540-24Q8L2DD-SYS Router: All versions

Cisco NCS 540-24Z8Q2C-SYS Router: All versions

Cisco NCS 540-28Z4C-SYS-A Router: All versions

Cisco NCS 540-28Z4C-SYS-D Router: All versions

Cisco NCS 540-6Z14S-SYS-D Router: All versions

Cisco NCS 540-6Z18G-SYS-D Router: All versions

Cisco NCS 540-ACC-SYS Router: All versions

Cisco NCS 540-FH-AGG Router: All versions

Cisco NCS 540-FH-CSR-SYS Router: All versions

Cisco NCS 540X-12Z16G-SYS-A Router: All versions

Cisco NCS 540X-12Z16G-SYS-D Router: All versions

Cisco NCS 540X-16Z4G8Q2C-A Router: All versions

Cisco NCS 540X-16Z4G8Q2C-D Router: All versions

Cisco NCS 540X-16Z8Q2C-D Router: All versions

Cisco NCS 540X-4Z14G2Q-A Router: All versions

Cisco NCS 540X-4Z14G2Q-D Router: All versions

Cisco NCS 540X-6Z18G-SYS-A Router: All versions

Cisco NCS 540X-6Z18G-SYS-D Router: All versions

Cisco NCS 540X-8Z16G-SYS-A Router: All versions

Cisco NCS 540X-8Z16G-SYS-D Router: All versions

Cisco NCS 540X-ACC-SYS Router: All versions

Cisco NCS 560-4-SYS Router: All versions

Cisco NCS 560-4-SYS-E Router: All versions

Cisco NCS 560-4-SYS-E-CC Router: All versions

Cisco NCS 560-7-SYS Router: All versions

Cisco NCS 560-7-SYS-E Router: All versions

Cisco Network Convergence System 1000 Series: All versions

Cisco Network Convergence System 1001: All versions

Cisco Network Convergence System 1002: All versions

Cisco Network Convergence System 1004: All versions

Cisco Network Convergence System 1010: All versions

Cisco Network Convergence System 500 Series Routers: All versions

Cisco Network Convergence System 5000 Series: All versions

Cisco Network Convergence System 5001: All versions

Cisco Network Convergence System 5002: All versions

Cisco Network Convergence System 5011: All versions

Cisco Network Convergence System 540 Router: All versions

Cisco Network Convergence System 540 Series Routers: All versions

Cisco Network Convergence System 5500 Series: All versions

Cisco Network Convergence System 5501: All versions

Cisco Network Convergence System 5501-SE: All versions

Cisco Network Convergence System 5502: All versions

Cisco Network Convergence System 5502-SE: All versions

Cisco Network Convergence System 5504: All versions

Cisco Network Convergence System 5508: All versions

Cisco Network Convergence System 5516: All versions

Cisco Network Convergence System 55A1-24H: All versions

Cisco Network Convergence System 55A1-24Q6H-S: All versions

Cisco Network Convergence System 55A1-24Q6H-SS: All versions

Cisco Network Convergence System 55A1-36H: All versions

Cisco Network Convergence System 55A1-36H-SE: All versions

Cisco Network Convergence System 55A1-48Q6H: All versions

Cisco Network Convergence System 55A2-MOD-HD-S: All versions

Cisco Network Convergence System 55A2-MOD-S: All versions

Cisco Network Convergence System 55A2-MOD-SE-S: All versions

Cisco Network Convergence System 560 Router: All versions

Cisco Network Convergence System 560 Series Routers: All versions

Cisco Network Convergence System 5700 Series: All versions

Cisco Network Convergence System 57B1-5DSE-SYS: All versions

Cisco Network Convergence System 57B1-6D24-SYS: All versions

Cisco Network Convergence System 57C3-MOD: All versions

Cisco Network Convergence System NCS-57C1-48Q6-SYS: All versions

Cisco Network Convergence System NCS-57D2-18DD-SYS: All versions

External links
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-acl-bypass-RZU5NL3e

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability


Improper access control in Cisco IOS XR Software