Cryptographic issues in Yarn yarn



Published: 2019-07-30 | Updated: 2020-07-17
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-5448
CWE-ID CWE-310
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Web applications / Modules and components for CMS

Vendor Yarn

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Cryptographic issues

EUVDB-ID: #VU30976

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-5448

CWE-ID: CWE-310 - Cryptographic Issues

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

Yarn before 1.17.3 is vulnerable to Missing Encryption of Sensitive Data due to HTTP URLs in lockfile causing unencrypted authentication data to be sent over the network.

Mitigation

Install update from vendor's website.

Vulnerable software versions

yarn: 1.17.0 - 1.17.2

External links

http://github.com/ChALkeR/notes/blob/master/Yarn-vuln.md
http://hackerone.com/reports/640904
http://yarnpkg.com/blog/2019/07/12/recommended-security-update/


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.



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