VDB-136979 · CVE-2019-12581 · GCVE-0-2019-12581

ZyXEL ZyWall/USG/UAG CGI Program free_time_failed.cgi err_msg 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.
5.7	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in ZyXEL ZyWall, USG and UAG and classified as problematic. The impacted element is an unknown function of the file free_time_failed.cgi of the component CGI Program. The manipulation of the argument err_msg as part of Parameter leads to cross site scripting. This vulnerability is traded as CVE-2019-12581. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in ZyXEL ZyWall, USG and UAG (Firewall Software) (the affected version unknown). It has been rated as problematic. This issue affects an unknown part of the file free_time_failed.cgi of the component CGI Program. The manipulation of the argument err_msg 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:

A reflective Cross-site scripting (XSS) vulnerability in the free_time_failed.cgi CGI program in selected Zyxel ZyWall, USG, and UAG devices allows remote attackers to inject arbitrary web script or HTML via the err_msg parameter.

The weakness was shared 06/27/2019 (Website). It is possible to read the advisory at zyxel.com. The identification of this vulnerability is CVE-2019-12581 since 06/02/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/28/2020). 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.

The entry VDB-136980 is related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Firewall Software

Vendor

ZyXEL

Name

License

commercial

Website

Vendor: https://www.zyxel.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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💳	💳	💳	💳	💳	💳
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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

06/02/2019 🔍
06/27/2019 +25 days 🔍
06/27/2019 +0 days 🔍
06/28/2020 +367 days 🔍

Sourcesinfo

Vendor: zyxel.com

Advisory: zyxel.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-12581 (🔍)
GCVE (CVE): GCVE-0-2019-12581
GCVE (VulDB): GCVE-100-136979
See also: 🔍

Entryinfo

Created: 06/27/2019 22:02
Updated: 06/28/2020 14:23
Changes: 06/27/2019 22:02 (58), 06/28/2020 14:23 (1)
Complete: 🔍
Cache ID: 216::103

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