CVE-2017-8295

NameCVE-2017-8295
DescriptionWordPress through 4.7.4 relies on the Host HTTP header for a password-reset e-mail message, which makes it easier for remote attackers to reset arbitrary passwords by making a crafted wp-login.php?action=lostpassword request and then arranging for this message to bounce or be resent, leading to transmission of the reset key to a mailbox on an attacker-controlled SMTP server. This is related to problematic use of the SERVER_NAME variable in wp-includes/pluggable.php in conjunction with the PHP mail function. Exploitation is not achievable in all cases because it requires at least one of the following: (1) the attacker can prevent the victim from receiving any e-mail messages for an extended period of time (such as 5 days), (2) the victim's e-mail system sends an autoresponse containing the original message, or (3) the victim manually composes a reply containing the original message.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-975-1, DSA-3870-1
NVD severitymedium (attack range: remote)
Debian Bugs862053

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
wordpress (PTS)wheezy3.6.1+dfsg-1~deb7u10vulnerable
wheezy (security)3.6.1+dfsg-1~deb7u16fixed
jessie4.1+dfsg-1+deb8u14fixed
jessie (security)4.1+dfsg-1+deb8u15fixed
stretch4.7.5+dfsg-2fixed
stretch (security)4.7.5+dfsg-2+deb9u1fixed
buster, sid4.8.2+dfsg-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
wordpresssource(unstable)4.7.5+dfsg-2medium862053
wordpresssourcejessie4.1+dfsg-1+deb8u14mediumDSA-3870-1
wordpresssourcewheezy3.6.1+dfsg-1~deb7u15mediumDLA-975-1

Notes

https://exploitbox.io/vuln/WordPress-Exploit-4-7-Unauth-Password-Reset-0day-CVE-2017-8295.html
http://blog.dewhurstsecurity.com/2017/05/04/exploitbox-wordpress-security-advisories.html
https://core.trac.wordpress.org/ticket/25239

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