CVE-2020-3524

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Summary

CVECVE-2020-3524
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-09-24 18:15:00 UTC
Updated2023-05-22 18:57:00 UTC
DescriptionA vulnerability in the Cisco IOS XE ROM Monitor (ROMMON) Software for Cisco 4000 Series Integrated Services Routers, Cisco ASR 920 Series Aggregation Services Routers, Cisco ASR 1000 Series Aggregation Services Routers, and Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, physical attacker to break the chain of trust and load a compromised software image on an affected device. The vulnerability is due to the presence of a debugging configuration option in the affected software. An attacker could exploit this vulnerability by connecting to an affected device through the console, forcing the device into ROMMON mode, and writing a malicious pattern using that specific option on the device. A successful exploit could allow the attacker to break the chain of trust and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco.

Risk And Classification

Problem Types: CWE-862

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco 4221 Integrated Services Router - All All All
Hardware Cisco 4331 Integrated Services Router - All All All
Hardware Cisco 4431 Integrated Services Router - All All All
Hardware Cisco 4461 Integrated Services Router - All All All
Hardware Cisco Asr-920-10sz-pd - All All All
Hardware Cisco Asr-920-10sz-pd - All All All
Hardware Cisco Asr-920-12cz-a - All All All
Hardware Cisco Asr-920-12cz-a - All All All
Hardware Cisco Asr-920-12cz-d - All All All
Hardware Cisco Asr-920-12cz-d - All All All
Hardware Cisco Asr-920-12sz-a - All All All
Hardware Cisco Asr-920-12sz-a - All All All
Hardware Cisco Asr-920-12sz-d - All All All
Hardware Cisco Asr-920-12sz-d - All All All
Hardware Cisco Asr-920-20sz-m - All All All
Hardware Cisco Asr-920-20sz-m - All All All
Hardware Cisco Asr-920-24sz-im - All All All
Hardware Cisco Asr-920-24sz-im - All All All
Hardware Cisco Asr-920-24sz-m - All All All
Hardware Cisco Asr-920-24sz-m - All All All
Hardware Cisco Asr-920-24tz-m - All All All
Hardware Cisco Asr-920-24tz-m - All All All
Hardware Cisco Asr-920-4sz-a - All All All
Hardware Cisco Asr-920-4sz-a - All All All
Hardware Cisco Asr-920-4sz-d - All All All
Hardware Cisco Asr-920-4sz-d - All All All
Hardware Cisco Asr 1000-x - All All All
Hardware Cisco Asr 1000-x - All All All
Hardware Cisco Asr 1001 - All All All
Hardware Cisco Asr 1001 - All All All
Hardware Cisco Asr 1001-x - All All All
Hardware Cisco Asr 1001-x - All All All
Hardware Cisco Asr 1002 - All All All
Hardware Cisco Asr 1002 - All All All
Hardware Cisco Asr 1002-x - All All All
Hardware Cisco Asr 1002-x - All All All
Hardware Cisco Asr 1004 - All All All
Hardware Cisco Asr 1004 - All All All
Hardware Cisco Asr 1006 - All All All
Hardware Cisco Asr 1006 - All All All
Hardware Cisco Asr 1013 - All All All
Hardware Cisco Asr 1013 - All All All
Hardware Cisco Asr 920u-12sz-im - All All All
Hardware Cisco Asr 920u-12sz-im - All All All
Hardware Cisco Cbr8 - All All All
Hardware Cisco Cbr8 - All All All
Operating System Cisco Ios Xe Rom Monitor All All All All
Operating System Cisco Ios Xe Rom Monitor All All All All
Hardware Cisco Isr 4221 - All All All
Hardware Cisco Isr 4221 - All All All
Hardware Cisco Isr 4331 - All All All
Hardware Cisco Isr 4331 - All All All
Hardware Cisco Isr 4431 - All All All
Hardware Cisco Isr 4431 - All All All
Hardware Cisco Isr 4461 - All All All
Hardware Cisco Isr 4461 - All All All

References

ReferenceSourceLinkTags
Cisco IOS XE ROM Monitor Software Vulnerability CISCO tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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