Authenticated router crash via unchecked strncpy length
Published Jan 21, 2025 · Updated Feb 4, 2025
Stack buffer overflow in Linksys E8450 1.2.00.360516 allows remote authenticated users to crash the router via a crafted portal request. The sub_422eb8 JSON parser passes the attacker-controlled anonymous_protect_status length to strncpy, overflowing a stack buffer. Authenticated access to the router web interface is required, and the demonstrated consequence is a crash rather than data disclosure or modification.
Summary
What happened
Stack buffer overflow in Linksys E8450 1.2.00.360516 allows remote authenticated users to crash the router via a crafted portal request. The sub_422eb8 JSON parser passes the attacker-controlled anonymous_protect_status length to strncpy, overflowing a stack buffer. Authenticated access to the router web interface is required, and the demonstrated consequence is a crash rather than data disclosure or modification.
The record
- CVE
- CVE-2024-57538
- Published
- Jan 21, 2025
- Updated
- Feb 4, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-120, T1499.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 21, 2025CVE publishedPublication date reported by the CVE source.
- Feb 4, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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.
Weakness, pattern, technique
Public exploit references
- Authenticated portal.cgi crash proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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