Code execution via trailing-dot path inspection bypass
Published Oct 1, 2024 · Updated Oct 4, 2024
Code execution in Malwarebytes Premium Security 5.0.0.883 allows local users to run crafted binaries from specially named Windows folders. Its path inspection treats Win32 and NT path representations inconsistently, so a trailing-dot directory bypasses normal malware checks when NtCreateUserProcess launches the file. The demonstration requires local file placement and direct API use; Malwarebytes disputes practical exploitation because only administrators can alter the relevant contents.
Summary
What happened
Code execution in Malwarebytes Premium Security 5.0.0.883 allows local users to run crafted binaries from specially named Windows folders. Its path inspection treats Win32 and NT path representations inconsistently, so a trailing-dot directory bypasses normal malware checks when NtCreateUserProcess launches the file. The demonstration requires local file placement and direct API use; Malwarebytes disputes practical exploitation because only administrators can alter the relevant contents.
The record
- CVE
- CVE-2024-44744
- Published
- Oct 1, 2024
- Updated
- Oct 4, 2024
- Vendor
- Malwarebytes
- Product
- Malwarebytes Premium Security
- Classifications
- CWE-94, T1562.001
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Oct 1, 2024CVE publishedPublication date reported by the CVE source.
- Oct 4, 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=5.0.0.883
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
- Trailing-dot directory NtCreateUserProcess demonstrationproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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