CVE-2018-12556
N/A
Published: May 16, 2019 at 04:12 PM UTC
Updated: June 17, 2026 at 01:37 AM UTC
1 product affected across 1 vendorWebsite
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Severity
N/A
Exploit prediction
EPSS 2%
Description
The signature verification routine in install.sh in yarnpkg/website through 2018-06-05 only verifies that the yarn release is signed by any (arbitrary) key in the local keyring of the user, and does not pin the signature to the yarn release key, which allows remote attackers to sign tampered yarn release packages with their own key.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (6)
x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlMailing Listx_refsource_FULLDISCThird Party Advisory
Source: [email protected]
http://seclists.org/fulldisclosure/2019/Apr/38x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/RUB-NDS/Johnny-You-Are-Firedx_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdfx_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/yarnpkg/website/commits/masterMailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://www.openwall.com/lists/oss-security/2019/04/30/4Quick Info
StatusMODIFIED
CWE
CWE-347
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