CVE-2015-1854 Missing authorization in n/a

High 7.5 Published 19 Sep 2017 Updated 6 Aug 2024

Attackers can bypass access restrictions to modify directory entries in 389 Directory Server via crafted ldapmodrdn calls.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2015-1854?

CVE-2015-1854 is a high-severity missing authorization vulnerability in Debian Debian Linux, published on 19 Sep 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

389 Directory Server before 1.3.3.10 allows attackers to bypass intended access restrictions and modify directory entries via a crafted ldapmodrdn call.

Weakness: CWE-284

Which versions are affected by CVE-2015-1854?

It affects 3 products.

Linux distribution packages (16)

`389-ds-base` Red Hat:enterprise_linux:7::client	All versions	`0:1.3.3.1-16.el7_1`
`389-ds-base-debuginfo` Red Hat:enterprise_linux:7::client	All versions	`0:1.3.3.1-16.el7_1`
`389-ds-base-devel` Red Hat:enterprise_linux:7::client	All versions	`0:1.3.3.1-16.el7_1`
`389-ds-base-libs` Red Hat:enterprise_linux:7::client	All versions	`0:1.3.3.1-16.el7_1`
`389-ds-base` Red Hat:enterprise_linux:7::computenode	All versions	`0:1.3.3.1-16.el7_1`
`389-ds-base-debuginfo` Red Hat:enterprise_linux:7::computenode	All versions	`0:1.3.3.1-16.el7_1`
`389-ds-base-devel` Red Hat:enterprise_linux:7::computenode	All versions	`0:1.3.3.1-16.el7_1`
`389-ds-base-libs` Red Hat:enterprise_linux:7::computenode	All versions	`0:1.3.3.1-16.el7_1`
`389-ds-base` Red Hat:enterprise_linux:7::server	All versions	`0:1.3.3.1-16.ael7b_1`
`389-ds-base-debuginfo` Red Hat:enterprise_linux:7::server	All versions	`0:1.3.3.1-16.ael7b_1`
`389-ds-base-devel` Red Hat:enterprise_linux:7::server	All versions	`0:1.3.3.1-16.ael7b_1`
`389-ds-base-libs` Red Hat:enterprise_linux:7::server	All versions	`0:1.3.3.1-16.ael7b_1`
`389-ds-base` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.3.3.1-16.el7_1`
`389-ds-base-debuginfo` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.3.3.1-16.el7_1`
`389-ds-base-devel` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.3.3.1-16.el7_1`
`389-ds-base-libs` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.3.3.1-16.el7_1`

Products include Debian Debian Linux, Fedoraproject 389 Directory Server, Fedoraproject Fedora.

How do I fix CVE-2015-1854?

Upgrade to a fixed version.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2015-1854 being exploited?

There is no known exploitation of CVE-2015-1854 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2015-1854, GHSA-v685-gqm8-hvj7, MGASA-2015-0183, RHSA-2015:0895.