Multiple vulnerabilities in Kronos Web Time and Attendance (webTA)



Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2020-8493
CVE-2020-8494
CVE-2020-8495
CWE-ID CWE-79
CWE-264
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
Public exploit code for vulnerability #3 is available.
Vulnerable software
 Kronos webTA
Client/Desktop applications / Other client software

Vendor Kronos Incorporated

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Stored cross-site scripting

EUVDB-ID: #VU24799

Risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear]

CVE-ID: CVE-2020-8493

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: Yes

Description

The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the "Login Message", "Banner Message", or "Password Instructions" field of the "/servlet/com.threeis.webta.H261configMenu" servlet. A remote administrator can permanently inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

This vulnerability affects the following versions of Kronos Web Time and Attendance:

  • 3.8.x and later

Mitigation

Install update from vendor's website.

Vulnerable software versions

Kronos webTA: All versions

CPE2.3 External links

https://www.nolanbkennedy.com/post/stored-xss-in-kronos-web-time-and-attendance-webta
https://www.kronos.com/products/kronos-webta


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU24798

Risk: Medium

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2020-8494

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists within the "emp_id", "userid", "pw1", "pw2", "supervisor" and "timekeeper" parameters due to the "com.threeis.webta.H402editUser" servlet allows a remote attacker with Timekeeper, Master Timekeeper, or HR Admin privileges to gain unauthorized administrative privileges within the application.

This vulnerability affects the following versions of Kronos Web Time and Attendance:

  • 3.8.x and later

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Kronos webTA: All versions

CPE2.3 External links

https://www.nolanbkennedy.com/post/privilege-escalation-2-in-kronos-web-time-and-attendance-webta
https://www.kronos.com/products/kronos-webta


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

3) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU24797

Risk: Medium

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2020-8495

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists within the "delegate", "delegateRole" and "delegatorUserId" parameters due to the “com.threeis.webta.H491delegate” servlet allows a remote attacker with Timekeeper or Supervisor privileges to gain unauthorized administrative privileges within the application.

This vulnerability affects the following versions of Kronos Web Time and Attendance:

  • 3.8.x and later


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Kronos webTA: All versions

CPE2.3 External links

https://www.nolanbkennedy.com/post/privilege-escalation-in-kronos-web-time-and-attendance-webta
https://www.kronos.com/products/kronos-webta


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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