CVE-2020-7616 Improperly Controlled Modification of Dynamically-Determined Object Attributes in express-mock-middleware
Attackers can achieve code execution via prototype pollution in express-mock-middleware if they can place malicious code in a new directory.
- 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-2020-7616?
CVE-2020-7616 is a medium-severity code injection vulnerability in express-mock-middleware, published on 7 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
express-mock-middleware through 0.0.6 is vulnerable to Prototype Pollution. Exported functions by the package can be tricked into adding or modifying properties of the `Object.prototype`. Exploitation of this vulnerability requires creation of a new directory where an attack code can be placed which will then be exported by `express-mock-middleware`. As such, this is considered to be a low risk.
Weakness: CWE-1321
Which versions are affected by CVE-2020-7616?
2 open source packages ship an affected version, including express-mock-middleware. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
express-mock-middleware npm | All versions to 0.0.6 | None |
express-mock-middleware npm | All versions to 0.0.6 | None |
Products include Express-Mock-Middleware Project Express-Mock-Middleware.
How do I fix CVE-2020-7616?
No fix has been published for CVE-2020-7616 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2020-7616 being exploited?
There is no known exploitation of CVE-2020-7616 in the wild and no public exploit code.
Sources
Also known as GHSA-v39h-qm32-8gwq.