CVE-2021-41862 Expression injection in AviatorScript
Attackers can execute arbitrary code by submitting malicious expressions encoded with BCEL to the AviatorScript library.
- 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-2021-41862?
CVE-2021-41862 is a critical code injection vulnerability in n/a, published on 1 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
AviatorScript through 5.2.7 allows code execution via an expression that is encoded with Byte Code Engineering Library (BCEL).
Weakness: CWE-74
Which versions are affected by CVE-2021-41862?
2 open source packages ship an affected version, including com.googlecode.aviator:aviator. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
com.googlecode.aviator:aviator Maven | From 5.2.1 to 5.2.7 | None |
com.googlecode.aviator:aviator Maven | From 5.2.1 to 5.2.7 | None |
Products include Aviatorscript Project Aviatorscript.
How do I fix CVE-2021-41862?
No fix has been published for CVE-2021-41862 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-2021-41862 being exploited?
There is no known exploitation of CVE-2021-41862 in the wild and no public exploit code.
Sources
Also known as GHSA-xpv2-8ppj-79hh.