CVE-2013-6501
First published: Tue Sep 17 2013(Updated: )
On <a href="http://git.php.net/?p=php-src.git;a=blob;f=ext/soap/php_sdl.c;h=0ac4c2ed7a9bf87bb454db58ae3d969eef36f244;hb=HEAD#l3224">http://git.php.net/?p=php-src.git;a=blob;f=ext/soap/php_sdl.c;h=0ac4c2ed7a9bf87bb454db58ae3d969eef36f244;hb=HEAD#l3224</a> We see that php wdsl extension is reading predictible filename from a cache directory. The name is based on a configurable directory name, a prefix, and a md5, md5 derived for the file that would be cached ( or rather the url ). So far, so good. However, default configuration is to use /tmp : <a href="http://www.php.net/manual/en/soap.configuration.php#ini.soap.wsdl-cache-dir">http://www.php.net/manual/en/soap.configuration.php#ini.soap.wsdl-cache-dir</a> so someone could connect to a shared php server ( not uncommon ), and if some php code is using this feature ( ie, using wsdl ), with cache enabled by default ,it could just pre-create the file in /tmp to have it used instead of the one intended to be used ( ie, a cache injection issue ). After a quick look, there is no check of owner or permission in get_sdl_from_cache. I am not able to say if WSDL injection is a serious issue or not. Fedora do have PrivateTmp in systemd file, that mitigate this issue ( provided someone do not use php to make the attack ). RHEL < 7 do not have it however. So far, upstream was not notified, except our php maintainer for a quick sanity check. I assume this affect all php version since a few years.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PHP PHP | <=5.6.7 | |
| SUSE Linux Enterprise Server | =11.0-sp3 | |
| SUSE Linux Enterprise Server | =11.0-sp3 |
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Reference Links
- http://git.php.net/?p=php-src.git;a=blob;f=ext/soap/php_sdl.c;h=0ac4c2ed7a9bf87bb454db58ae3d969eef36f244;hb=HEAD#l3224
- http://www.php.net/manual/en/soap.configuration.php#ini.soap.wsdl-cache-dir
- https://bugzilla.redhat.com/show_bug.cgi/http:address
- http://example.com/
- http://www.openwall.com/lists/oss-security/2015/02/08/5
- http://www.openwall.com/lists/oss-security/2015/02/08/7
- https://bugzilla.redhat.com/show_bug.cgi?id=1009103
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00003.html
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
- http://www.securityfocus.com/bid/72530
- https://security.gentoo.org/glsa/201606-10
- agent/type
- agent/softwarecombine
- agent/first-publish-date
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/references
- agent/weakness
- agent/severity
- agent/author
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/tags
- agent/event
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2013-6501
- vendor/php
- canonical/php php
- version/php php/5.6.7
- vendor/suse
- canonical/suse linux enterprise server
- version/suse linux enterprise server/11.0-sp3