PHP is a general purpose scripting language widely used in World Wide Web (WWW) pages and applications.
The PHP escapeshellcmd() function does not properly escape multi-byte characters which are not valid in the locale used by the script. This could allow an attacker to bypass quoting restrictions imposed by escapeshellcmd() and execute arbitrary commands if the PHP script was using certain locales. Scripts using the default UTF-8 locale are not affected by this issue. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2008-2051 to this issue.
PHP functions htmlentities() and htmlspecialchars() do not properly recognize partial multi-byte sequences. Depending on the browser being used, an attacker could use this flaw to conduct cross-site scripting attacks. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2007-5898 to this issue.
A PHP script which used the transparent session ID configuration option, or which used the output_add_rewrite_var() function, could leak session identifiers to external web sites. If a page included an HTML form with an ACTION attribute referencing a non-local URL, the user's session ID would be included in the form data passed to that URL. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2007-5899 to this issue.
PHP fnmatch() function does not restrict the length of the string argument. An attacker could use this flaw to crash the PHP interpreter where a script used fnmatch() on untrusted input data. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2007-4782 to this issue.
PHP does not properly seed its pseudo-random number generator used by functions such as rand() and mt_rand(), possibly allowing an attacker to easily predict the generated pseudo-random values. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2008-2107 and CVE-2008-2108 to these issues.
More information about these vulnerabilities can be found in the security advisory issued by RedHat Linux:
| Product: | Affected Version(s): | Risk Level: | Actions: |
|---|---|---|---|
| Avaya Communication Manager | CM 5.0 and later | Low | See recommended actions below. This issue will be addressed in accordance with Avaya's Product Security Vulnerability Response Policy |
| Avaya SIP Enablement Services | SES 5.0 and later | Low | See recommended actions below. This issue will be addressed in accordance with Avaya's Product Security Vulnerability Response Policy |
Recommended Actions:
For all vulnerable system products,
Avaya recommends that customers restrict local
and network access to the server. This restriction should be
enforced through the use of physical security, firewalls, ACLs,
VPNs, and other generally-accepted networking practices until such
time as an update becomes available and can be installed.
Avaya software-only products operate on general-purpose operating systems. Occasionally vulnerabilities may be discovered in the underlying operating system or applications that come with the operating system. These vulnerabilities often do not impact the software-only product directly but may threaten the integrity of the underlying platform.
In the case of this advisory Avaya software-only products are not affected by the vulnerability directly but the underlying Linux platform may be. Customers should determine on which Linux operating system the product was installed and then follow that vendor's guidance.
| Product: | Actions: |
|---|---|
| CVLAN | Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the CVLAN application. |
| Avaya Integrated Management Suite (IMS) | Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the IMS application. |
| Voice Portal | Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the Voice Portal application. |
Recommended Actions:
In the event that the affected package is installed,
Avaya recommends that customers follow recommended actions supplied by RedHat Linux.
Additional information may also be available via the Avaya support website and through your Avaya account representative. Please contact your Avaya product support representative, or dial 1-800-242-2121, with any questions.
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V 1.0 - August 20, 2008 - Initial Statement issued.
Send information regarding any discovered security problems with Avaya products to either the contact noted in the product's documentation or securityalerts@avaya.com.
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