CVE-2024-26133 EventStoreDB Projections Subsystem has potential password leak

Medium 5.5 Published Updated

Attackers with disk or system stream access can leak user passwords from custom projections in EventStoreDB, requiring upgrades and password resets.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-26133?

CVE-2024-26133 is a medium-severity vulnerability in EventStore, published on 21 Feb 2024. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

EventStoreDB (ESDB) is an operational database built to store events. A vulnerability has been identified in the projections subsystem in versions 20 prior to 20.10.6, 21 prior to 21.10.11, 22 prior to 22.10.5, and 23 prior to 23.10.1. Only database instances that use custom projections are affected by this vulnerability. User passwords may become accessible to those who have access to the chunk files on disk, and users who have read access to system streams. Only users in the `$admins` group can access system streams by default. ESDB 23.10.1, 22.10.5, 21.10.11, and 20.10.6 contain a patch for this issue. Users should upgrade EventStoreDB, reset the passwords for current and previous members of `$admins` and `$ops` groups, and, if a password was reused in any other system, reset it in those systems to a unique password to follow best practices. If an upgrade cannot be done immediately, reset the passwords for current and previous members of `$admins` and `$ops` groups. Avoid creating custom projections until the patch has been applied.

Weakness: CWE-522, CWE-256

Which versions are affected by CVE-2024-26133?

It affects 1 product.

Products include Kurrent Eventstoredb.

How do I fix CVE-2024-26133?

No fix has been published for CVE-2024-26133 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-26133 being exploited?

There is no known exploitation of CVE-2024-26133 in the wild and no public exploit code.

Sources

Also known as GHSA-6r53-v8hj-x684.

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