CVE-2018-20718 Deserialization in n/a
An attacker can achieve code execution in Pydio by exploiting PHP object injection via stored preferences, requiring a public link or unprivileged account access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-20718?
CVE-2018-20718 is a critical unsafe deserialization vulnerability in n/a, published on 15 Jan 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Pydio before 8.2.2, an attack is possible via PHP Object Injection because a user is allowed to use the $phpserial$a:0:{} syntax to store a preference. An attacker either needs a "public link" of a file, or access to any unprivileged user account for creation of such a link.
Weakness: CWE-502
Which versions are affected by CVE-2018-20718?
It affects 1 product.
Products include Pydio Pydio.
How do I fix CVE-2018-20718?
No fix has been published for CVE-2018-20718 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-2018-20718 being exploited?
There is no known exploitation of CVE-2018-20718 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as GHSA-qhmw-m62m-p9xh.