GHSA-p9mp-vq4v-v5m5 eZ Publish Legacy Passwordless login for LDAP users
Attackers can bypass authentication and gain unauthorized access to eZ Publish Legacy installations using specific LDAP or TextFile login handlers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is GHSA-p9mp-vq4v-v5m5?
GHSA-p9mp-vq4v-v5m5 is an authentication bypass vulnerability in ezsystems/ezpublish-legacy, published on 15 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
This security advisory fixes a vulnerability in eZ Publish Legacy, and we recommend that you install it as soon as possible if you are using Legacy.
Installations that are using the legacy LDAP login handler or the TextFile login handler in combination with the standard legacy login handler, may in rare cases be vulnerable to a failure of the standard login handler to verify passwords correctly, allowing unauthorised access.
If your installation has never used the LDAP or TextFile login handlers, or never used legacy login at all, then it is not affected. Still, we recommend installing the update, to be on the safe side.
To install, use Composer to update to one of the "Resolving versions" mentioned above, or apply this patch manually: https://github.com/ezsystems/ezpublish-legacy/commit/13f03a2be6c0ee4d0caaafaef05904ea9b0c4d9d
Which versions are affected by GHSA-p9mp-vq4v-v5m5?
10 open source packages ship an affected version, including ezsystems/ezpublish-legacy.
| Package | Affected | Fixed in |
|---|---|---|
ezsystems/ezpublish-legacy Packagist | From 2011.0.0 | 2017.12.4.1 |
ezsystems/ezpublish-legacy Packagist | From 2011.0.0 | 2017.12.4.1 |
ezsystems/ezpublish-legacy Packagist | From 2018.6.0 | 2018.6.1.2 |
ezsystems/ezpublish-legacy Packagist | From 2018.6.0 | 2018.6.1.2 |
ezsystems/ezpublish-legacy Packagist | From 2018.9.0 | 2018.9.1.1 |
ezsystems/ezpublish-legacy Packagist | From 2018.9.0 | 2018.9.1.1 |
4 more packages
ezsystems/ezpublish-legacy Packagist | From 5.3.0 | 5.3.12.4 |
ezsystems/ezpublish-legacy Packagist | From 5.3.0 | 5.3.12.4 |
ezsystems/ezpublish-legacy Packagist | From 5.4.0 | 5.4.12.1 |
ezsystems/ezpublish-legacy Packagist | From 5.4.0 | 5.4.12.1 |
How do I fix GHSA-p9mp-vq4v-v5m5?
Upgrade ezsystems/ezpublish-legacy to a fixed version for your release line: 2017.12.4.1, 2018.6.1.2, 2018.9.1.1 or 5.3.12.4.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is GHSA-p9mp-vq4v-v5m5 being exploited?
There is no known exploitation of GHSA-p9mp-vq4v-v5m5 in the wild and no public exploit code.