CVE-2015-8857 Incorrect Handling of Non-Boolean Comparisons During Minification in uglify-js
Attackers can bypass security mechanisms by exploiting improper boolean expression rewriting in the uglify-js JavaScript minifier library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-8857?
CVE-2015-8857 is a critical 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 uglify-js package before 2.4.24 for Node.js does not properly account for non-boolean values when rewriting boolean expressions, which might allow attackers to bypass security mechanisms or possibly have unspecified other impact by leveraging improperly rewritten Javascript.
Weakness: CWE-254
Which versions are affected by CVE-2015-8857?
4 open source packages ship an affected version, including uglifier and uglify-js. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
uglifier RubyGems | All versions | 2.7.2 |
uglifier RubyGems | All versions | 2.7.2 |
uglify-js npm | All versions | 2.4.24 |
uglify-js npm | All versions | 2.4.24 |
Products include Uglifyjs Project Uglifyjs.
How do I fix CVE-2015-8857?
Upgrade uglifier to 2.7.2 or later.
Is CVE-2015-8857 being exploited?
There is no known exploitation of CVE-2015-8857 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2015-8857, GHSA-34r7-q49f-h37c, UBUNTU-CVE-2015-8857.