Nextcloud Server password reset endpoint is not brute force protected
CVE-2023-35172

8.7HIGH

Key Information:

Vendor

Nextcloud
Status
Security-advisories
Vendor
CVE Published:
23 June 2023

What is CVE-2023-35172?

Certain versions of Nextcloud Server and Nextcloud Enterprise Server are vulnerable to a brute-force attack on the password reset links. This issue affects versions ranging from 25.0.0 to 25.0.7 and 26.0.0 to 26.0.2 for Nextcloud Server, as well as various versions for Nextcloud Enterprise Server. An attacker could exploit this vulnerability to reset user passwords via the brute-force method. Fortunately, patches addressing this issue have been implemented in the latest versions.

Affected Version(s)

security-advisories Nextcloud Server >= 25.0.0, < 25.0.7 < Nextcloud Server 25.0.0, 25.0.7

security-advisories Nextcloud Server >= 26.0.0, < 26.0.2 < Nextcloud Server 26.0.0, 26.0.2

security-advisories Nextcloud Enterprise Server >= 25.0.0, < 25.0.7 < Nextcloud Enterprise Server 25.0.0, 25.0.7

References

https://github.com/nextcloud/security-advisories/security...
x_refsource_CONFIRM
https://github.com/nextcloud/server/pull/38267
x_refsource_MISC
https://hackerone.com/reports/1987062
x_refsource_MISC

CVSS V3.1

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.