CVE-2024-5102
Avast Antivirus Symbolic Link Elevation of Privilege
Description
A sym-linked file accessed via the repair function in Avast Antivirus <24.2 on Windows may allow user to elevate privilege to delete arbitrary files or run processes as NT AUTHORITY\SYSTEM. The vulnerability exists within the "Repair" (settings -> troubleshooting -> repair) feature, which attempts to delete a file in the current user's AppData directory as NT AUTHORITY\SYSTEM. A low-privileged user can make a pseudo-symlink and a junction folder and point to a file on the system. This can provide a low-privileged user an Elevation of Privilege to win a race-condition which will re-create the system files and make Windows callback to a specially-crafted file which could be used to launch a privileged shell instance. This issue affects Avast Antivirus prior to 24.2.
INFO
Published Date :
June 10, 2024, 5:16 p.m.
Last Modified :
June 12, 2024, 6:12 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.0
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-5102.
| URL | Resource |
|---|---|
| https://support.norton.com/sp/static/external/tools/security-advisories.html | Not Applicable |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-5102 vulnerability anywhere in the article.
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Cybersecurity News
CVE-2024-5102: Avast Antivirus Flaw Could Allow Hackers to Delete Files and Run Code as SYSTEM
A high-severity vulnerability (CVE-2024-5102) has been discovered in Avast Antivirus for Windows, potentially allowing attackers to gain elevated privileges and wreak havoc on users’ systems. This fla ... Read more
The following table lists the changes that have been made to the
CVE-2024-5102 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jun. 12, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://support.norton.com/sp/static/external/tools/security-advisories.html No Types Assigned https://support.norton.com/sp/static/external/tools/security-advisories.html Not Applicable Added CWE NIST CWE-59 Added CPE Configuration AND OR *cpe:2.3:a:avast:antivirus:*:*:*:*:*:*:*:* versions up to (excluding) 24.2 OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* -
CVE Received by [email protected]
Jun. 10, 2024
Action Type Old Value New Value Added Description A sym-linked file accessed via the repair function in Avast Antivirus <24.2 on Windows may allow user to elevate privilege to delete arbitrary files or run processes as NT AUTHORITY\SYSTEM. The vulnerability exists within the "Repair" (settings -> troubleshooting -> repair) feature, which attempts to delete a file in the current user's AppData directory as NT AUTHORITY\SYSTEM. A low-privileged user can make a pseudo-symlink and a junction folder and point to a file on the system. This can provide a low-privileged user an Elevation of Privilege to win a race-condition which will re-create the system files and make Windows callback to a specially-crafted file which could be used to launch a privileged shell instance. This issue affects Avast Antivirus prior to 24.2. Added Reference NortonLifeLock Inc. https://support.norton.com/sp/static/external/tools/security-advisories.html [No types assigned] Added CWE NortonLifeLock Inc. CWE-1284 Added CVSS V4.0 NortonLifeLock Inc. CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-5102 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-5102
weaknesses.