Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2024-5102— Elevation of Privelage via symlinked file in Avast Antivirus

Quick assessment

Affected
Avast Antivirus
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Avast Antivirus是捷克Avast公司的一套杀毒软件。ecto是elixir-ecto开源的一个用于数据映射和语言集成查询的工具包。 Avast Antivirus 24.2之前版本存在安全漏洞，该漏洞源于低权限用户可以创建伪符号链接和连接文件夹并指向系统上的文件，可能允许用户提升权限以删除任意文件。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.22% · P12
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2024-5102

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Elevation of Privelage via symlinked file in Avast Antivirus
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1284
Source: CVE Program / CVE List V5
Vulnerability Title
Avast Antivirus 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Avast Antivirus是捷克Avast公司的一套杀毒软件。ecto是elixir-ecto开源的一个用于数据映射和语言集成查询的工具包。 Avast Antivirus 24.2之前版本存在安全漏洞，该漏洞源于低权限用户可以创建伪符号链接和连接文件夹并指向系统上的文件，可能允许用户提升权限以删除任意文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Avast Antivirus 24.2 -

II. Public POCs for CVE-2024-5102

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2024-5102

请登录查看更多情报信息。

Vendor Advisories for CVE-2024-5102 (1)

IV. Related Vulnerabilities

Same product: Antivirus
Same vendor: Avast
Same weakness: CWE-1284

V. Comments for CVE-2024-5102

No comments yet

Leave a comment