Authenticated memory corruption via unchecked fread
Published Nov 21, 2024 · Updated Nov 21, 2024
Buffer overflow in infostat.cgi in TOTOLINK A810R 4.1.2cu.5182_B20201026 allows remote authenticated users to corrupt process memory. The CGI handler uses fread to copy standard-input data into the v11 buffer without checking whether the input fits. Exploitation requires a valid management-session cookie and an oversized POST request; published evidence does not establish code execution.
Summary
What happened
Buffer overflow in infostat.cgi in TOTOLINK A810R 4.1.2cu.5182_B20201026 allows remote authenticated users to corrupt process memory. The CGI handler uses fread to copy standard-input data into the v11 buffer without checking whether the input fits. Exploitation requires a valid management-session cookie and an oversized POST request; published evidence does not establish code execution.
The record
- CVE
- CVE-2024-53334
- Published
- Nov 21, 2024
- Updated
- Nov 21, 2024
- Vendor
- TOTOLINK
- Product
- A810R
- Classifications
- CWE-120, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 21, 2024CVE publishedPublication date reported by the CVE source.
- Nov 21, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=4.1.2cu.5182_B20201026
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.
Weakness, pattern, technique
Public exploit references
- A810R infostat.cgi oversized-POST proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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