Authenticated control-flow overwrite via unchecked Referer copy
Published Oct 7, 2024 · Updated Oct 7, 2024
Stack-based buffer overflow in D-Link COVR-2600R Firmware 1.01b05 allows remote authenticated users to overwrite control data via HTTP Referer. In sub_24E28, an unchecked strcpy copies the attacker-controlled HTTP_REFERER environment value into a stack buffer and can overwrite the return address. Access to the LAN-side HNAP interface and a valid administrative session are required; the published proof of concept demonstrates control of the overwrite but not arbitrary code execution.
Summary
What happened
Stack-based buffer overflow in D-Link COVR-2600R Firmware 1.01b05 allows remote authenticated users to overwrite control data via HTTP Referer. In sub_24E28, an unchecked strcpy copies the attacker-controlled HTTP_REFERER environment value into a stack buffer and can overwrite the return address. Access to the LAN-side HNAP interface and a valid administrative session are required; the published proof of concept demonstrates control of the overwrite but not arbitrary code execution.
The record
- CVE
- CVE-2024-44674
- Published
- Oct 7, 2024
- Updated
- Oct 7, 2024
- Vendor
- D-Link
- Product
- COVR-2600R Firmware
- Classifications
- CWE-121, T1210
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 7, 2024CVE publishedPublication date reported by the CVE source.
- Oct 7, 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=1.01b05
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.
Public exploit references
- COVR-2600R stack overflow proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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