CVE-2025-56689 Auth bypass in n/a

Medium 4.6 Published Updated

Attackers can bypass OTP verification by replaying intercepted responses, though the vendor disputes this as intended behavior.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-56689?

CVE-2025-56689 is a medium-severity authentication bypass vulnerability in n/a, published on 3 Sep 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

One Identity by Quest Safeguard for Privileged Passwords Appliance 7.5.1.20903 is vulnerable to One Time Password (OTP)/Multifactor Authentication (MFA) bypass using response manipulation. An attacker who intercepts or captures a valid OTP response can bypass the OTP verification step by replaying the same response. NOTE: this is disputed by the Supplier because, by design, the product successfully authenticates a client that possesses a cookie whose validity time interval includes the current time, and thus authentication after any type of "interception" is not a violation of the security model. (The cookie has the HttpOnly attribute.)

Weakness: CWE-290

Which versions are affected by CVE-2025-56689?

It affects 1 product.

Products include Quest One Identity.

How do I fix CVE-2025-56689?

No fix has been published for CVE-2025-56689 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-56689 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-56689 exists.

Sources

Also known as GHSA-6q6r-cf26-j7gh.

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