vercel ms index.js parse redos
CVE-2017-20162

4.3MEDIUM

Key Information:

Vendor

Vercel
Status
Ms
Vendor
CVE Published:
5 January 2023

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2017-20162?

A vulnerability, which was classified as problematic, has been found in vercel ms up to 1.x. This issue affects the function parse of the file index.js. The manipulation of the argument str leads to inefficient regular expression complexity. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.0.0 is able to address this issue. The patch is named caae2988ba2a37765d055c4eee63d383320ee662. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-217451.

Affected Version(s)

ms 1.x

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2017-20162 - Proof of Concept

References

https://vuldb.com/?id.217451
vdb-entrytechnical-description
https://vuldb.com/?ctiid.217451
signaturepermissions-required
https://github.com/vercel/ms/pull/89
exploitissue-tracking

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

CVSS V3.0

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

VulDB GitHub Commit Analyzer
JSON
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