CVE-2016-6496 Deserialization in n/a

What is CVE-2016-6496?

CVE-2016-6496 is a critical unsafe deserialization vulnerability in n/a, published on 9 Dec 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The LDAP directory connector in Atlassian Crowd before 2.8.8 and 2.9.x before 2.9.5 allows remote attackers to execute arbitrary code via an LDAP attribute with a crafted serialized Java object, aka LDAP entry poisoning.

Weakness: CWE-20

Which versions are affected by CVE-2016-6496?

It affects 1 product.

Products include Atlassian Crowd.

How do I fix CVE-2016-6496?

No fix has been published for CVE-2016-6496 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2016-6496 being exploited?

There is no known exploitation of CVE-2016-6496 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2019-11580 Atlassian Crowd and Crowd Data Center Remote Code Execution Exploited Critical 9.8
• CVE-2022-43782 Auth bypass in Crowd Data Center Critical 9.8
• CVE-2017-18105 Auth bypass in Crowd High 8.1
• CVE-2018-20238 Auth bypass in Crowd High 8.1
• CVE-2023-22521 Code injection in Crowd Data Center High 8.0

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-gqpx-798c-8554.