NTLMv2 credential disclosure via ActiveX LoadFile
Published Jan 14, 2022 · Updated Sep 17, 2024
Information exposure in Acrobat Reader DC ActiveX Control on Windows allows remote attackers to obtain NTLMv2 credentials via a web page. The AxAcroPDFLib.AxAcroPDF LoadFile method accepts an attacker-controlled remote path and causes integrated authentication to that location. Exploitation requires a victim to visit the attacker's page in an ActiveX-capable browser, exposing an NTLMv2 challenge-response without granting direct code execution.
Summary
What happened
Information exposure in Acrobat Reader DC ActiveX Control on Windows allows remote attackers to obtain NTLMv2 credentials via a web page. The AxAcroPDFLib.AxAcroPDF LoadFile method accepts an attacker-controlled remote path and causes integrated authentication to that location. Exploitation requires a victim to visit the attacker's page in an ActiveX-capable browser, exposing an NTLMv2 challenge-response without granting direct code execution.
The record
- CVE
- CVE-2021-44702
- Published
- Jan 14, 2022
- Updated
- Sep 17, 2024
- Vendor
- Adobe
- Product
- Adobe Acrobat Reader
- Classifications
- CWE-200, T1187
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 14, 2022CVE 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 <=17.011.30204
- Affected versionversion=unspecified <=20.004.30017
- Affected versionversion=unspecified <=21.007.20099
- Affected versionversion=unspecified <=None
What conditions does exploitation require?
What is affected?
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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