Vulnerability identifier: #VU38700

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-1000048

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
qs
Web applications / JS libraries

Vendor: npm Inc.

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

the web framework using ljharb's qs module older than v6.3.2, v6.2.3, v6.1.2, and v6.0.4 is vulnerable to a DoS. A malicious user can send a evil request to cause the web framework crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

qs: 1.0.0 - 6.3.1

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External links
http://access.redhat.com/errata/RHSA-2017:2672
http://github.com/ljharb/qs/issues/200

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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.