Amazon Linux AMI update for python-twisted-web

1) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU26355

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-10108

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.

The vulnerability exists due to an error when processing two Content-length headers, sent within one HTTP request that caused the request body to be interpreted as a pipelined request. A remote attacker can send a specially crafted HTTP request to the affected web server and posing HTTP cache or perform other attacks against web application.

Mitigation

Update the affected packages:

i686:
    python27-twisted-web-8.2.0-6.6.amzn1.i686
    python26-twisted-web-8.2.0-6.6.amzn1.i686

src:
    python-twisted-web-8.2.0-6.6.amzn1.src

x86_64:
    python26-twisted-web-8.2.0-6.6.amzn1.x86_64
    python27-twisted-web-8.2.0-6.6.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2020-1372.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.