CVE-2021-3057 is a vulnerability in Palo Alto Networks Globalprotect
Published on October 13, 2021
GlobalProtect App: Buffer Overflow Vulnerability When Connecting to Portal or Gateway
A stack-based buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect app that enables a man-in-the-middle attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.9 on Windows; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.8 on Windows; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.8 on the Universal Windows Platform; GlobalProtect app 5.3 versions earlier than GlobalProtect app 5.3.1 on Linux.
Vulnerability Analysis
CVE-2021-3057 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Timeline
Initial publication
Weakness Type
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2021-3057 has been classified to as a Stack Overflow vulnerability or weakness.
Products Associated with CVE-2021-3057
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Affected Versions
Palo Alto Networks GlobalProtect App:- Version 5.1 and below 5.1.9 is affected.
- Version 5.2 and below 5.2.8 is affected.
- Version 5.3 and below 5.3.1 is affected.
- Version 5.2 and below 5.2.8 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.