Symantec Web Isolation up to 1.11.21 Javascript Reflected cross site scripting

Summaryinfo

A vulnerability was found in Symantec Web Isolation. It has been classified as problematic. This affects an unknown function of the component Javascript. The manipulation leads to cross site scripting (Reflected). This vulnerability is uniquely identified as CVE-2018-12246. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Symantec Web Isolation. It has been rated as problematic. This issue affects an unknown code block of the component Javascript. The manipulation with an unknown input leads to a cross site scripting vulnerability (Reflected). Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

Symantec Web Isolation (WI) 1.11 prior to 1.11.21 is susceptible to a reflected cross-site scripting (XSS) vulnerability. A remote attacker can target end users protected by WI with social engineering attacks using crafted URLs for legitimate web sites. A successful attack allows injecting malicious JavaScript code into the website's rendered copy running inside the end user's web browser. It does not allow injecting code into the real (isolated) copy of the website running on the WI Threat Isolation Engine.

The bug was discovered 10/19/2018. The weakness was disclosed 10/22/2018 (Website). The advisory is shared at support.symantec.com. The identification of this vulnerability is CVE-2018-12246 since 06/12/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 1.11 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 105581†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Symantec

Name

• Web Isolation

Version

• 1.11.0
• 1.11.1
• 1.11.2
• 1.11.3
• 1.11.4
• 1.11.5
• 1.11.6
• 1.11.7
• 1.11.8
• 1.11.9
• 1.11.10
• 1.11.11
• 1.11.12
• 1.11.13
• 1.11.14
• 1.11.15
• 1.11.16
• 1.11.17
• 1.11.18
• 1.11.19
• 1.11.20
• 1.11.21

License

• commercial

Website

• Vendor: https://www.symantec.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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