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CVE-2023-45149— Password of talk conversations can be bruteforced 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 Talk是德国Nextcloud公司的一款自托管的本地音频/视频和聊天通信服务。 Nextcloud Talk 存在安全漏洞。攻击者利用该漏洞可以获取密码信息。

CVSS 4.3 · Medium EPSS 0.48% · P40
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I. Basic Information for CVE-2023-45149

Vulnerability Information
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Vulnerability Title
Password of talk conversations can be bruteforced in Nextcloud
Source: CVE Program / CVE List V5
Vulnerability Description
Nextcloud talk is a chat module for the Nextcloud server platform. In affected versions brute force protection of public talk conversation passwords can be bypassed, as there was an endpoint validating the conversation password without registering bruteforce attempts. It is recommended that the Nextcloud Talk app is upgraded to 15.0.8, 16.0.6 or 17.1.1. There are no known workarounds for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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 Talk 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nextcloud Talk是德国Nextcloud公司的一款自托管的本地音频/视频和聊天通信服务。 Nextcloud Talk 存在安全漏洞。攻击者利用该漏洞可以获取密码信息。
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 >= 15.0.0, < 15.0.8 -

II. Public POCs for CVE-2023-45149

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III. Intelligence Information for CVE-2023-45149

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Patches & Fixes for CVE-2023-45149 (1)

Vendor Advisories for CVE-2023-45149 (1)

Other References for CVE-2023-45149 (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-2023-45148 4.3 MEDIUM Rate limiter not working reliable when Memcached is installed 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-2023-45149

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