CVE-2016-6253

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2017-01-20 · updated 2026-06-17
Weakness: CWE-59

Description

mail.local in NetBSD versions 6.0 through 6.0.6, 6.1 through 6.1.5, and 7.0 allows local users to change ownership of or append data to arbitrary files on the target system via a symlink attack on the user mailbox.

Affected products

Netbsd: 6.0, 6.0.1, 6.0.2, 6.0.3, 6.0.4, 6.0.5 (+8)

References

http://akat1.pl/?id=2
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2016-006.txt.asc
http://packetstormsecurity.com/files/138021/NetBSD-mail.local-8-Local-Root.html
http://www.rapid7.com/db/modules/exploit/unix/local/netbsd_mail_local
http://www.securityfocus.com/bid/92101
http://www.securitytracker.com/id/1036429
https://www.exploit-db.com/exploits/40141/
https://www.exploit-db.com/exploits/40385/
http://akat1.pl/?id=2
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2016-006.txt.asc
http://packetstormsecurity.com/files/138021/NetBSD-mail.local-8-Local-Root.html
http://www.rapid7.com/db/modules/exploit/unix/local/netbsd_mail_local

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