Local privilege escalation via OpenSSL DLL search
Published May 18, 2021 · Updated Sep 17, 2024
Uncontrolled DLL search handling in Bitdefender GravityZone Business Security before 6.6.23.329 allows local users to elevate privileges. The OpenSSL component searches an uncontrolled location and loads an attacker-planted third-party DLL into a more privileged process. Low-privilege local access and the ability to place the DLL in the searched location are required; successful exploitation executes attacker code with elevated privileges.
Summary
What happened
Uncontrolled DLL search handling in Bitdefender GravityZone Business Security before 6.6.23.329 allows local users to elevate privileges. The OpenSSL component searches an uncontrolled location and loads an attacker-planted third-party DLL into a more privileged process. Low-privilege local access and the ability to place the DLL in the searched location are required; successful exploitation executes attacker code with elevated privileges.
The record
- CVE
- CVE-2021-3423
- Published
- May 18, 2021
- Updated
- Sep 17, 2024
- Vendor
- Bitdefender
- Product
- GravityZone Business Security
- Classifications
- CWE-427, T1574.001
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 18, 2021CVE publishedPublication date reported by the CVE source.
- Sep 17, 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=unspecified <6.6.23.329
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
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Technologies
Your stack
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Your stack
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