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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2023-45148— Rate limiter not working reliable when Memcached is installed in Nextcloud

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存在安全漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。

CVSS 4.3 · Medium EPSS 0.70% · P52

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-45148

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Rate limiter not working reliable when Memcached is installed in Nextcloud
Source: CVE Program / CVE List V5
Vulnerability Description
Nextcloud is an open source home cloud server. When Memcached is used as `memcache.distributed` the rate limiting in Nextcloud Server could be reset unexpectedly resetting the rate count earlier than intended. Users are advised to upgrade to versions 25.0.11, 26.0.6 or 27.1.0. Users unable to upgrade should change their config setting `memcache.distributed` to `\OC\Memcache\Redis` and install Redis instead of Memcached.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Nextcloud 安全漏洞
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存在安全漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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 >= 25.0.0, < 25.0.11 -

II. Public POCs for CVE-2023-45148

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2023-45148

请登录查看更多情报信息。

Patches & Fixes for CVE-2023-45148 (1)

Vendor Advisories for CVE-2023-45148 (1)

Other References for CVE-2023-45148 (1)

Same Patch Batch · nextcloud · 2023-10-16 · 5 CVEs total

CVE-2023-45151 6.5 MEDIUM OAuth2 client_secret stored in plain text in the Nextcloud database
CVE-2023-45150 4.3 MEDIUM Inviting excessive long email addresses to a calendar event makes the Nextcloud server unr
CVE-2023-45149 4.3 MEDIUM Password of talk conversations can be bruteforced in Nextcloud
CVE-2023-45660 4.3 MEDIUM Require strict cookies for image proxy requests in Nextcloud Mail

IV. Related Vulnerabilities

Same product: security-advisories
Same vendor: nextcloud
Same weakness: CWE-307

V. Comments for CVE-2023-45148

No comments yet

Leave a comment