Authenticated code execution via unbounded heap copy
Published Dec 5, 2024 · Updated Dec 7, 2024
Heap-based buffer overflow in SonicWall SMA100 10.2.1.13-72sv and earlier allows remote authenticated users to execute code over SSL-VPN. The SSL-VPN code copies attacker-controlled input into a heap buffer with strcpy, which performs no bounds checking; SonicWall has not disclosed the affected function or request field. A valid SSL-VPN account and high-complexity conditions are required; a successful overwrite can corrupt the process or execute attacker-controlled code.
Summary
What happened
Heap-based buffer overflow in SonicWall SMA100 10.2.1.13-72sv and earlier allows remote authenticated users to execute code over SSL-VPN. The SSL-VPN code copies attacker-controlled input into a heap buffer with strcpy, which performs no bounds checking; SonicWall has not disclosed the affected function or request field. A valid SSL-VPN account and high-complexity conditions are required; a successful overwrite can corrupt the process or execute attacker-controlled code.
The record
- CVE
- CVE-2024-40763
- Published
- Dec 5, 2024
- Updated
- Dec 7, 2024
- Vendor
- SonicWall
- Product
- SonicWall Secure Mobile Access 100 Series Firmware
- Classifications
- CWE-122, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 5, 2024CVE publishedPublication date reported by the CVE source.
- Dec 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=0 <=10.2.1.13-72sv
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
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- SonicWall advisory-level potential exploitation noticereported exploitation
Technologies
Your stack
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Your stack
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