Vulnerability Details CVE-2019-8338
The signature verification routine in the Airmail GPG-PGP Plugin, versions 1.0 (9) and earlier, does not verify the status of the signature at all, which allows remote attackers to spoof arbitrary email signatures by crafting a signed email with an invalid signature. Also, it does not verify the validity of the signing key, which allows remote attackers to spoof arbitrary email signatures by crafting a key with a fake user ID (email address) and injecting it into the user's keyring.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 56.3%
CVSS Severity
CVSS v3 Score 5.9
CVSS v2 Score 4.3
References
- http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html
- http://seclists.org/fulldisclosure/2019/Apr/38
- https://github.com/Airmail/AirmailPlugIn-Framework/commits/master
- https://github.com/RUB-NDS/Johnny-You-Are-Fired
- https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
- https://www.openwall.com/lists/oss-security/2019/04/30/4
- http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html
- http://seclists.org/fulldisclosure/2019/Apr/38
- https://github.com/Airmail/AirmailPlugIn-Framework/commits/master
- https://github.com/RUB-NDS/Johnny-You-Are-Fired
- https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
- https://www.openwall.com/lists/oss-security/2019/04/30/4
Products affected by CVE-2019-8338
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cpe:2.3:a:gpg-pgp_project:gpg-pgp:-
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cpe:2.3:a:gpg-pgp_project:gpg-pgp:1.0
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cpe:2.3:a:gpg-pgp_project:gpg-pgp:1.0(9)