HTTP request smuggling attack in Dell EMC SupportAssist Enterprise

1) HTTP request smuggling attack

EUVDB-ID: #VU13529

Risk: Low

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-7658

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

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to conduct an HTTP request smuggling attack on the target system.

The vulnerability exists due to improper handling HTTP requests that contain more than one content-length header. A remote attacker can send a specially crafted HTTP request that contains a transfer-encoding header and a content-length header, cause the software and an upstream HTTP agent to misinterpret the boundary of the request and to poison the web cache on the system, which could be used to conduct further attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Dell Support Assist Enterprise: before 2.0.21

External links

http://www.dell.com/support/kbdoc/en-us/000177817/dsa-2019-080-dell-emc-supportassist-enterprise-security-update-for-eclipse-jetty-server-vulnerability

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.