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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2024-22403— OAuth2 authorization codes are valid indefinetly in Nextcloud server

Quick assessment

Affected
nextcloud security-advisories
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.

Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud server 28.0.0之前版本存在代码问题漏洞，该漏洞源于OAuth2授权代码无限期有效，导致攻击者可以随时使用该代码进行身份验证。

CVSS 3.0 · Low EPSS 0.45% · P38

Possible ATT&CK Techniques 1 AI

T1110.001 · Password Guessing
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2024-22403

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
OAuth2 authorization codes are valid indefinetly in Nextcloud server
Source: CVE Program / CVE List V5
Vulnerability Description
Nextcloud server is a self hosted personal cloud system. In affected versions OAuth codes did not expire. When an attacker would get access to an authorization code they could authenticate at any time using the code. As of version 28.0.0 OAuth codes are invalidated after 10 minutes and will no longer be authenticated. To exploit this vulnerability an attacker would need to intercept an OAuth code from a user session. It is recommended that the Nextcloud Server is upgraded to 28.0.0. There are no known workarounds for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的会话过期机制
Source: CVE Program / CVE List V5
Vulnerability Title
Nextcloud 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud server 28.0.0之前版本存在代码问题漏洞，该漏洞源于OAuth2授权代码无限期有效，导致攻击者可以随时使用该代码进行身份验证。
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
nextcloud security-advisories < 28.0.0 -

II. Public POCs for CVE-2024-22403

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2024-22403

请登录查看更多情报信息。

Patches & Fixes for CVE-2024-22403 (1)

Vendor Advisories for CVE-2024-22403 (1)

Mailing List Discussions for CVE-2024-22403 (1)

Other References for CVE-2024-22403 (1)

Same Patch Batch · nextcloud · 2024-01-18 · 7 CVEs total

CVE-2024-22212 9.7 CRITICAL Nextcloud global site selector authentication bypass
CVE-2024-22402 5.4 MEDIUM Improper handling of request URLs in Nextcloud Guests app allows guest users to bypass app
CVE-2024-22401 4.1 MEDIUM All users can reset the allowed apps list for Nextcloud Guest App users
CVE-2024-22404 4.1 MEDIUM Permissions bypass in Nextcloud with the files zip app
CVE-2024-22400 3.1 LOW Open redirect in user_saml via RelayState parameter in Nextcloud User Saml
CVE-2024-22213 Cross-site Scripting when sending HTML as a comment in the Nextcloud Deck app

IV. Related Vulnerabilities

Same product: security-advisories
Same vendor: nextcloud
Same weakness: CWE-613

V. Comments for CVE-2024-22403

No comments yet

Leave a comment