SecurEnvoy SecurMail up to 9.2 secmail/getmessage.exe mailboxid cross site scripting

Summaryinfo

A vulnerability marked as problematic has been reported in SecurEnvoy SecurMail up to 9.2. The affected element is an unknown function of the file secmail/getmessage.exe. Performing a manipulation of the argument mailboxid as part of Parameter results in cross site scripting. This vulnerability is known as CVE-2018-7703. Remote exploitation of the attack is possible. Furthermore, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in SecurEnvoy SecurMail up to 9.2. This affects an unknown code of the file secmail/getmessage.exe. The manipulation of the argument mailboxid as part of a Parameter leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

Cross-site scripting (XSS) vulnerability in SecurEnvoy SecurMail before 9.2.501 allows remote attackers to inject arbitrary web script or HTML via the mailboxid parameter to secmail/getmessage.exe.

The bug was discovered 03/12/2018. The weakness was published 03/15/2018 as confirmed mailinglist post (Full-Disclosure). It is possible to read the advisory at seclists.org. This vulnerability is uniquely identified as CVE-2018-7703 since 03/05/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

A public exploit has been developed by SEC Consult and been published before and not just after the advisory. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370828 (SecurEnvoy SecurMail multiple critical vulnerabilities).

Upgrading to version 9.2.501 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (44285). Similar entries are available at VDB-114613, VDB-114614, VDB-114616 and VDB-114617. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• SecurEnvoy

Name

• SecurMail

Version

• 9.0
• 9.1
• 9.2

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

• 🔍
• 🔍
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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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