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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2022-39347— Missing path sanitation with `drive` channel in FreeRDP

Quick assessment

Affected
FreeRDP FreeRDP
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.

FreeRDP是FreeRDP团队的一款开源的远程桌面协议（RDP）的实现。 FreeRDP存在路径遍历漏洞，该漏洞源于缺少对“drive”通道的路径规范化和基本路径检查。攻击者利用该漏洞可以读取共享目录之外的文件。

CVSS 2.6 · Low EPSS 0.90% · P57
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2022-39347

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Missing path sanitation with `drive` channel in FreeRDP
Source: CVE Program / CVE List V5
Vulnerability Description
FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing path canonicalization and base path check for `drive` channel. A malicious server can trick a FreeRDP based client to read files outside the shared directory. This issue has been addressed in version 2.9.0 and all users are advised to upgrade. Users unable to upgrade should not use the `/drive`, `/drives` or `+home-drive` redirection switch.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
FreeRDP 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeRDP是FreeRDP团队的一款开源的远程桌面协议（RDP）的实现。 FreeRDP存在路径遍历漏洞，该漏洞源于缺少对“drive”通道的路径规范化和基本路径检查。攻击者利用该漏洞可以读取共享目录之外的文件。
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
FreeRDP FreeRDP < 2.9.0 -

II. Public POCs for CVE-2022-39347

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2022-39347

请登录查看更多情报信息。

Patches & Fixes for CVE-2022-39347 (1)

Vendor Advisories for CVE-2022-39347 (2)

Mailing List Discussions for CVE-2022-39347 (2)

Same Patch Batch · FreeRDP · 2022-11-16 · 7 CVEs total

CVE-2022-39320 5.5 MEDIUM Heap buffer overflow in urbdrc channel
CVE-2022-39316 4.8 MEDIUM Out of bound read in FreeRDP
CVE-2022-39318 4.8 MEDIUM Division by zero in urbdrc channel in FreeRDP
CVE-2022-39317 4.6 MEDIUM Out of bounds read in zgfx decoder in FreeRDP
CVE-2022-39319 4.6 MEDIUM Missing length validation in urbdrc channel in FreeRDP
CVE-2022-41877 4.6 MEDIUM Missing input length validation in `drive` channel in FreeRDP

IV. Related Vulnerabilities

Same product: FreeRDP
Same vendor: FreeRDP
Same weakness: CWE-22

V. Comments for CVE-2022-39347

No comments yet

Leave a comment