CVE-2017-18486

moderate-risk
Published 2019-08-09

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.

Do I need to act?

~
1.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.2/10 High
NETWORK / LOW complexity

Affected Products (1)

Helpdesk

Affected Vendors

Jitbit

References (8)

Exploit https://github.com/Kc57/JitBit_Helpdesk_Auth_Bypass
Third Party Advisory https://packetstormsecurity.com/files/144334/JitBit-Helpdesk-9.0.2-Broken-Authen...
Exploit https://www.exploit-db.com/exploits/42776
Third Party Advisory https://www.trustedsec.com/2017/09/full-disclosure-jitbit-helpdesk-authenticatio...
Exploit https://github.com/Kc57/JitBit_Helpdesk_Auth_Bypass
Third Party Advisory https://packetstormsecurity.com/files/144334/JitBit-Helpdesk-9.0.2-Broken-Authen...
Exploit https://www.exploit-db.com/exploits/42776
Third Party Advisory https://www.trustedsec.com/2017/09/full-disclosure-jitbit-helpdesk-authenticatio...
35
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 4/34 · Minimal
Exposure 5/34 · Minimal