Bug 1449197 (CVE-2017-8295) - CVE-2017-8295 wordpress: Usage of Host HTTP header for a password-reset e-mail message
Summary: CVE-2017-8295 wordpress: Usage of Host HTTP header for a password-reset e-mai...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2017-8295
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1449199 1449198
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-05-09 12:06 UTC by Andrej Nemec
Modified: 2019-09-29 14:12 UTC (History)
2 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2019-06-08 03:12:08 UTC


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Description Andrej Nemec 2017-05-09 12:06:31 UTC
WordPress 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.

References:

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

Comment 1 Andrej Nemec 2017-05-09 12:06:48 UTC
Created wordpress tracking bugs for this issue:

Affects: epel-all [bug 1449199]
Affects: fedora-all [bug 1449198]

Comment 2 Product Security DevOps Team 2019-06-08 03:12:08 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.


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