Unauthenticated root shell via unbounded SSID parsing
Published Aug 25, 2022 · Updated Aug 3, 2024
Stack overflow in H3C B5 Mini B5MiniV100R005 Edit_BasicSSID allows remote attackers to execute code as root via a crafted SSID request. Edit_BasicSSID passes the attacker-controlled param value to sscanf with an unbounded %[^;] conversion, overflowing the smaller V31 stack buffer. The HTTP management interface must be reachable; no authentication is required, and exploitation yields a root shell or crashes the service.
Summary
What happened
Stack overflow in H3C B5 Mini B5MiniV100R005 Edit_BasicSSID allows remote attackers to execute code as root via a crafted SSID request. Edit_BasicSSID passes the attacker-controlled param value to sscanf with an unbounded %[^;] conversion, overflowing the smaller V31 stack buffer. The HTTP management interface must be reachable; no authentication is required, and exploitation yields a root shell or crashes the service.
The record
- CVE
- CVE-2022-36478
- Published
- Aug 25, 2022
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1210
- 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
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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
- Edit_BasicSSID crafted HTTP POST proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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