CVE-2020-7659 HTTP Request Smuggling in reel

High 7.5 Published Updated

Attackers can perform HTTP request smuggling via header parsing flaws in the deprecated Reel Ruby web framework, potentially bypassing security controls.

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-2020-7659?

CVE-2020-7659 is a high-severity vulnerability in reel, published on 1 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

reel through 0.6.1 allows Request Smuggling attacks due to incorrect Content-Length and Transfer encoding header parsing. It is possible to conduct HTTP request smuggling attacks by sending the Content-Length header twice. Furthermore, invalid Transfer Encoding headers were found to be parsed as valid which could be leveraged for TE:CL smuggling attacks. Note: This project is deprecated, and is not maintained any more.

Weakness: CWE-444

Which versions are affected by CVE-2020-7659?

2 open source packages ship an affected version, including reel. It affects 1 product.

PackageAffectedFixed in
reel RubyGemsAll versions to 0.6.1None
reel RubyGemsAll versions to 0.6.1None

Products include Celluloid Reel.

How do I fix CVE-2020-7659?

No fix has been published for CVE-2020-7659 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-7659 being exploited?

There is no known exploitation of CVE-2020-7659 in the wild and no public exploit code.

Sources

Also known as GHSA-x3v4-pxvm-63j8, SNYK-RUBY-REEL-569135, UBUNTU-CVE-2020-7659.

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