CVE-2017-17536 Command injection in n/a
Remote attackers can execute arbitrary code in Phabricator by exploiting unblocked Mercurial flags in branch names.
- 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-2017-17536?
CVE-2017-17536 is a high-severity command injection vulnerability in n/a, published on 11 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
Phabricator before 2017-11-10 does not block the --config and --debugger flags to the Mercurial hg program, which allows remote attackers to execute arbitrary code by using the web UI to browse a branch whose name begins with a --config= or --debugger= substring.
Which versions are affected by CVE-2017-17536?
It affects 1 product.
Products include Phacility Phabricator.
How do I fix CVE-2017-17536?
No fix has been published for CVE-2017-17536 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-2017-17536 being exploited?
There is no known exploitation of CVE-2017-17536 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2017-17536, GHSA-j2x8-qgjm-w8gp, UBUNTU-CVE-2017-17536.