CVE-2017-18486

Public Exploit

Description

Jitbit Helpdesk before 9.0.3 allows remote attackers to escalate privileges because of mishandling of the User/AutoLogin userHash parameter. By inspecting the token value provided in a password reset link, a user can leverage a weak PRNG to recover the shared secret used by the server for remote authentication. The shared secret can be used to escalate privileges by forging new tokens for any user. These tokens can be used to automatically log in as the affected user.

Category

7.2
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.67% Top 20%
Third-Party Advisory github.com Third-Party Advisory packetstormsecurity.com Third-Party Advisory exploit-db.com Third-Party Advisory trustedsec.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.trustedsec.com/2017/09/full-disclosure-jitbit-helpdesk-authentication-bypass-0-day third party advisory
https://github.com/Kc57/JitBit_Helpdesk_Auth_Bypass third party advisory exploit
https://www.exploit-db.com/exploits/42776 exploit vdb entry third party advisory
https://packetstormsecurity.com/files/144334/JitBit-Helpdesk-9.0.2-Broken-Authentication.html vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-18486?
CVE-2017-18486 has been scored as a high severity vulnerability.
How to fix CVE-2017-18486?
To fix CVE-2017-18486, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-18486 being actively exploited in the wild?
It is possible that CVE-2017-18486 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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