CVE-2007-1718: CRLF Injection

Published Mar 28, 2007

Updated

CRLF injection vulnerability in the mail function in PHP 4.0.0 through 4.4.6 and 5.0.0 through 5.2.1 allows remote attackers to inject arbitrary e-mail headers and possibly conduct spam attacks via a control character immediately following folding of the (1) Subject or (2) To parameter, as demonstrated by a parameter containing a "\r\n\t\n" sequence, related to an increment bug in the SKIPLONGHEADERSEP macro.

Affected Software

75 affected components

PHP PHP=4.3.9

PHP PHP=4.0-beta1

PHP PHP=5.1.5

PHP PHP=5.1.2

PHP PHP=4.0-beta4

PHP PHP=4.2.0

PHP PHP=5.1.1

PHP PHP=4.4.4

PHP PHP=5.0.0-beta1

PHP PHP=4.1.0

PHP PHP=5.1.6

PHP PHP=4.3.4

PHP PHP=4.0.4

PHP PHP=4.3.0

PHP PHP=4.0.5

PHP PHP=5.0-rc1

PHP PHP=5.0.5

PHP PHP=4.3.6

PHP PHP=5.0.1

PHP PHP=5.1.4

PHP PHP=4.0.7-rc2

PHP PHP=4.3.7

PHP PHP=5.0.4

PHP PHP=4.0.7-rc1

PHP PHP=4.2.2

PHP PHP=4.4.2

PHP PHP=4.0-rc1

PHP PHP=4.3.2

PHP PHP=4.3.11

PHP PHP=4.0.0

PHP PHP=4.0.3-patch1

PHP PHP=4.0.7

PHP PHP=4.0.2

PHP PHP=4.3.3

PHP PHP=5.0-rc3

PHP PHP=4.1.1

PHP PHP=4.4.3

PHP PHP=5.0.0-rc2

PHP PHP=5.0.3

PHP PHP=4.2.3

PHP PHP=5.1.0

PHP PHP=4.4.5

PHP PHP=4.0.1-patch1

PHP PHP=5.0.0-rc3

PHP PHP=4.0

PHP PHP=4.0-beta2

PHP PHP=4.0.1-patch2

PHP PHP=4.0.6

PHP PHP=5.2.0

PHP PHP=5.0-rc2

PHP PHP=4.1.2

PHP PHP=5.0.0-beta3

PHP PHP=4.0.7-rc3

PHP PHP=4.0-rc2

PHP PHP=4.3.1

PHP PHP=5.1.3

PHP PHP=4.0-beta_4_patch1

PHP PHP=4.4.0

PHP PHP=4.3.10

PHP PHP=4.2.1

PHP PHP=5.0.0-rc1

PHP PHP=4.0.4-patch1

PHP PHP=4.0.1

PHP PHP=5.0.2

PHP PHP=4.4.6

PHP PHP=4.2

PHP PHP=4.4.1

PHP PHP=4.0-beta3

PHP PHP=5.2.1

PHP PHP=4.0.3

PHP PHP=5.0.0-beta4

PHP PHP=5.0.0

PHP PHP=4.3.8

PHP PHP=4.3.5

PHP PHP=5.0.0-beta2

Event History

Mar 28, 2007

CVE Published

12:19 AM

CVE Published

via MITRE·04:00 AM

Data Sourced

via MITRE·04:00 AM

Description

Frequently Asked Questions

What is the severity of CVE-2007-1718?

CVE-2007-1718 is considered a moderate severity vulnerability, allowing for the injection of arbitrary email headers.

How do I fix CVE-2007-1718?

To mitigate CVE-2007-1718, upgrade to a patched version of PHP that is not vulnerable, such as versions 4.4.7 or later and 5.2.2 or later.

What PHP versions are affected by CVE-2007-1718?

CVE-2007-1718 affects PHP versions from 4.0.0 to 4.4.6 and 5.0.0 to 5.2.1.

What types of attacks can result from CVE-2007-1718?

CVE-2007-1718 can potentially allow remote attackers to conduct spam attacks by injecting malicious email headers.

Is there a workaround for CVE-2007-1718 if I cannot upgrade PHP?

A potential workaround for CVE-2007-1718 is to sanitize input to the mail function to prevent control character injection.