b3log Symphony 2.2.0 JSON Object /settings/avatar userAvatarURL cross site scripting

Summaryinfo

A vulnerability was found in b3log Symphony 2.2.0. It has been rated as problematic. This vulnerability affects unknown code of the file /settings/avatar of the component JSON Object Handler. The manipulation of the argument userAvatarURL leads to cross site scripting. This vulnerability is traded as CVE-2017-16881. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in b3log Symphony 2.2.0. This issue affects an unknown function of the file /settings/avatar of the component JSON Object Handler. The manipulation of the argument userAvatarURL with an unknown input leads to a cross site scripting vulnerability. 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:

b3log Symphony (aka Sym) 2.2.0 does not properly address XSS in JSON objects, as demonstrated by a crafted userAvatarURL value to /settings/avatar, related to processor/AdminProcessor.java, processor/ArticleProcessor.java, processor/UserProcessor.java, service/ArticleQueryService.java, service/AvatarQueryService.java, and service/CommentQueryService.java.

The bug was discovered 11/18/2017. The weakness was shared 11/18/2017 (GitHub Repository). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2017-16881 since 11/18/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• b3log

Name

• Symphony

Version

• 2.2.0

Website

• Product: https://github.com/b3log/symphony/

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CPE 2.2info

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