VDB-157217 · CVE-2020-13483 · GCVE-0-2020-13483

Bitrix24 up to 20.0.0 Web Application Firewall ajax.php items[ITEMS][ID] cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.2	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Bitrix24 up to 20.0.0. Impacted is an unknown function of the file components/bitrix/mobileapp.list/ajax.php/ of the component Web Application Firewall. The manipulation of the argument items[ITEMS][ID] as part of Parameter leads to cross site scripting. This vulnerability is uniquely identified as CVE-2020-13483. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Bitrix24 up to 20.0.0 and classified as problematic. This issue affects an unknown code of the file components/bitrix/mobileapp.list/ajax.php/ of the component Web Application Firewall. The manipulation of the argument items[ITEMS][ID] as part of a Parameter 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:

The Web Application Firewall in Bitrix24 through 20.0.0 allows XSS via the items[ITEMS][ID] parameter to the components/bitrix/mobileapp.list/ajax.php/ URI.

The weakness was disclosed 06/24/2020. The identification of this vulnerability is CVE-2020-13483 since 05/25/2020. 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 are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

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

The entry VDB-157218 is pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Bitrix24

Version

20.0

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/25/2020 🔍
06/24/2020 +30 days 🔍
06/26/2020 +2 days 🔍
06/26/2020 +0 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-13483 (🔍)
GCVE (CVE): GCVE-0-2020-13483
GCVE (VulDB): GCVE-100-157217
See also: 🔍

Entryinfo

Created: 06/26/2020 06:53
Updated: 06/26/2020 06:58
Changes: 06/26/2020 06:53 (38), 06/26/2020 06:58 (17)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.