Remote root execution via EditWlanMacList overflow
Published Aug 25, 2022 · Updated Aug 3, 2024
Stack overflow in H3C GR-1200W MiniGRW1A0V100R006 allows remote attackers to execute code via a crafted EditWlanMacList request. The EditWlanMacList handler formats attacker-controlled param data with sscanf using greedy, unbounded fields, overflowing stack buffers. The published proof of concept reaches a stable root shell through the router's HTTP interface without authentication; the same flaw can also interrupt service.
Summary
What happened
Stack overflow in H3C GR-1200W MiniGRW1A0V100R006 allows remote attackers to execute code via a crafted EditWlanMacList request. The EditWlanMacList handler formats attacker-controlled param data with sscanf using greedy, unbounded fields, overflowing stack buffers. The published proof of concept reaches a stable root shell through the router's HTTP interface without authentication; the same flaw can also interrupt service.
The record
- CVE
- CVE-2022-36518
- Published
- Aug 25, 2022
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 25, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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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.
Public exploit references
- H3C GR-1200W EditWlanMacList proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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