CVE-2017-5539 Path traversal in n/a
Attackers can bypass directory traversal filters to read or delete arbitrary files on the server.
- 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-2017-5539?
CVE-2017-5539 is a critical path traversal vulnerability in n/a, published on 23 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The patch for directory traversal (CVE-2017-5480) in b2evolution version 6.8.4-stable has a bypass vulnerability. An attacker can use ..\/ to bypass the filter rule. Then, this attacker can exploit this vulnerability to delete or read any files on the server. It can also be used to determine whether a file exists.
Weakness: CWE-22
Which versions are affected by CVE-2017-5539?
It affects 1 product.
Products include B2evolution B2evolution.
How do I fix CVE-2017-5539?
No fix has been published for CVE-2017-5539 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2017-5539 being exploited?
There is no known exploitation of CVE-2017-5539 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-qm48-3ggc-g645.