GHSA-cfwc-xjfp-44jg Command Injection in gnuplot
Attackers can execute arbitrary system commands via unsanitized plot titles in the gnuplot npm package.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GHSA-cfwc-xjfp-44jg?
GHSA-cfwc-xjfp-44jg is a command injection vulnerability in gnuplot, published on 4 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
All versions of gnuplot are vulnerable to Command Injection. The package fails to sanitize plot titles, which may allow attackers to execute arbitrary code in the system if the title value is supplied by a user. The following proof-of-concept creates a testing file in the current directory:
var gnuplot = require('gnuplot');
const title = '"\nset title system("touch testing")\n#';
gnuplot()
.set('term png')
.set('output "out.png"')
.set(`title "${title}"`)
.set('xrange [-10:10]')
.set('yrange [-2:2]')
.set('zeroaxis')
.plot('(x/4)**2, sin(x), 1/x')
.end();
Recommendation
No fix is currently available. Consider using an alternative package until a fix is made available.
Which versions are affected by GHSA-cfwc-xjfp-44jg?
2 open source packages ship an affected version, including gnuplot.
| Package | Affected | Fixed in |
|---|---|---|
gnuplot npm | From 0.0.0 | None |
gnuplot npm | From 0.0.0 | None |
How do I fix GHSA-cfwc-xjfp-44jg?
No fix has been published for GHSA-cfwc-xjfp-44jg 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 GHSA-cfwc-xjfp-44jg being exploited?
There is no known exploitation of GHSA-cfwc-xjfp-44jg in the wild and no public exploit code.