Predictable tokens used for password resets
CVE-2021-21352

6.8MEDIUM

Key Information:

Vendor

Anuko

Status
Timetracker
Vendor
CVE Published:
3 March 2021

What is CVE-2021-21352?

Anuko Time Tracker is an open source, web-based time tracking application written in PHP. In TimeTracker before version 1.19.24.5415 tokens used in password reset feature in Time Tracker are based on system time and, therefore, are predictable. This opens a window for brute force attacks to guess user tokens and, once successful, change user passwords, including that of a system administrator. This vulnerability is pathced in version 1.19.24.5415 (started to use more secure tokens) with an additional improvement in 1.19.24.5416 (limited an available window for brute force token guessing).

Affected Version(s)

timetracker < 1.19.24.5415

References

https://www.anuko.com/time-tracker/index.htm
x_refsource_MISC
https://github.com/anuko/timetracker/security/advisories/...
x_refsource_CONFIRM
https://github.com/anuko/timetracker/commit/40f3d9345adc2...
x_refsource_MISC

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.