Medium severity · published Oct 16, 2023
CVE-2023-45149
Password of talk conversations can be bruteforced in Nextcloud
4.3
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
security-advisories · nextcloud
>= 15.0.0, < 15.0.8; >= 16.0.0, < 16.0.6; >= 17.0.0, < 17.1.1 · source: vendor
TA
Talk · Nextcloud
15.0.0 before 15.0.8; 16.0.0 before 16.0.6; 17.0.0 before 17.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-45149
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-45149
Vendor Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7rf8-pqmj-rpqv
Issue Tracking
https://github.com/nextcloud/spreed/pull/10545
Permissions Required
https://hackerone.com/reports/2094473
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