Cisco Jabber Web-based Management Interface cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Cisco Jabber. The affected element is an unknown function of the component Web-based Management Interface. This manipulation causes cross site scripting. This vulnerability appears as CVE-2017-12356. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability has been found in Cisco Jabber (affected version unknown) and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Web-based Management Interface. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. The summary by CVE is:

A vulnerability in the web-based management interface of Cisco Jabber for Windows, Mac, Android, and iOS could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information. Cisco Bug IDs: CSCvf50378, CSCvg56018.

The bug was discovered 11/29/2017. The weakness was presented 11/30/2017 as cisco-sa-20171129-jabber as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2017-12356 since 08/03/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/25/2021). The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370671 (Cisco Jabber Multiple Cross-Site Scripting Vulnerabilities).

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

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 101990†). See VDB-110085 for similar entry. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• Cisco

Name

• Jabber

License

• commercial

Website

• Vendor: https://www.cisco.com/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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