CVE-2017-17520 Command injection in n/a
Remote attackers can execute arbitrary commands via argument injection in TIN's URL handler due to lack of input validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2017-17520?
CVE-2017-17520 is a high-severity command injection vulnerability in n/a, published on 14 Dec 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
tools/url_handler.pl in TIN 2.4.1 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to conduct argument-injection attacks via a crafted URL. NOTE: a third party has reported that this is intentional behavior, because the documentation states "url_handler.pl was designed to work together with tin which only issues shell escaped absolute URLs.
Weakness: CWE-74
Which versions are affected by CVE-2017-17520?
It affects 1 product.
Products include Debian Tin.
How do I fix CVE-2017-17520?
No fix has been published for CVE-2017-17520 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2017-17520 being exploited?
There is no known exploitation of CVE-2017-17520 in the wild and no public exploit code.
Sources
Also known as GHSA-569q-x9r8-48cw.