Multiple vulnerabilities in TCExam



Published: 2021-07-22
Risk High
Patch available YES
Number of vulnerabilities 4
CVE ID CVE-2021-20111
CVE-2021-20112
CVE-2021-20113
CVE-2021-20114
CWE ID CWE-79
CWE-200
CWE-284
Exploitation vector Network
Public exploit N/A
Vulnerable software
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TCExam
Client/Desktop applications / Other client software

Vendor Tecnick.com

Security Advisory

1) Stored cross-site scripting

Risk: Low

CVSSv3.1: 5.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-20111

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

Exploit availability: No

Description

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

The vulnerability exists due to insufficient sanitization of user-supplied data in the "tce_filemanager.php". A remote authenticated attacker can 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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TCExam: 12.0.013, 12.0.014, 12.1.000, 12.1.001, 12.1.002, 12.1.003, 12.1.004, 12.1.005, 12.1.006, 12.1.007, 12.1.008, 12.1.009, 12.1.010, 12.1.011, 12.1.012, 12.1.013, 12.1.014, 12.1.015, 12.1.016, 12.1.017, 12.1.018, 12.1.019, 12.1.020, 12.1.021, 12.1.022, 12.1.023, 12.1.024, 12.1.025, 12.1.026, 12.1.027, 12.1.28, 12.1.29, 12.1.30, 12.2.0, 12.2.1, 12.2.2, 12.2.3, 12.2.4, 12.2.5, 13.0.1, 13.0.2, 13.1.1, 13.2.0, 13.2.1, 13.3.0, 14.0.0, 14.0.1, 14.0.2, 14.0.3, 14.1.0, 14.1.2, 14.1.3, 14.1.4, 14.1.5, 14.1.6, 14.1.7, 14.1.8, 14.1.9, 14.1.10, 14.1.11, 14.1.12, 14.1.13, 14.1.14, 14.1.15, 14.2.1, 14.2.2, 14.2.3, 14.3.0, 14.3.1, 14.3.2, 14.4.0, 14.4.1, 14.5.0, 14.5.1, 14.5.2, 14.6.0, 14.7.0, 14.8.0, 14.8.1

CPE External links

https://www.tenable.com/security/research/tra-2021-32

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.

2) Stored cross-site scripting

Risk: Low

CVSSv3.1: 5.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-20112

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

Exploit availability: No

Description

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

The vulnerability exists due to insufficient sanitization of user-supplied data in the "tce_select_mediafile.php". A remote authenticated attacker can 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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TCExam: 12.0.013, 12.0.014, 12.1.000, 12.1.001, 12.1.002, 12.1.003, 12.1.004, 12.1.005, 12.1.006, 12.1.007, 12.1.008, 12.1.009, 12.1.010, 12.1.011, 12.1.012, 12.1.013, 12.1.014, 12.1.015, 12.1.016, 12.1.017, 12.1.018, 12.1.019, 12.1.020, 12.1.021, 12.1.022, 12.1.023, 12.1.024, 12.1.025, 12.1.026, 12.1.027, 12.1.28, 12.1.29, 12.1.30, 12.2.0, 12.2.1, 12.2.2, 12.2.3, 12.2.4, 12.2.5, 13.0.1, 13.0.2, 13.1.1, 13.2.0, 13.2.1, 13.3.0, 14.0.0, 14.0.1, 14.0.2, 14.0.3, 14.1.0, 14.1.2, 14.1.3, 14.1.4, 14.1.5, 14.1.6, 14.1.7, 14.1.8, 14.1.9, 14.1.10, 14.1.11, 14.1.12, 14.1.13, 14.1.14, 14.1.15, 14.2.1, 14.2.2, 14.2.3, 14.3.0, 14.3.1, 14.3.2, 14.4.0, 14.4.1, 14.5.0, 14.5.1, 14.5.2, 14.6.0, 14.7.0, 14.8.0, 14.8.1

CPE External links

https://www.tenable.com/security/research/tra-2021-32

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.

3) Information disclosure

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-20113

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TCExam: 12.0.013, 12.0.014, 12.1.000, 12.1.001, 12.1.002, 12.1.003, 12.1.004, 12.1.005, 12.1.006, 12.1.007, 12.1.008, 12.1.009, 12.1.010, 12.1.011, 12.1.012, 12.1.013, 12.1.014, 12.1.015, 12.1.016, 12.1.017, 12.1.018, 12.1.019, 12.1.020, 12.1.021, 12.1.022, 12.1.023, 12.1.024, 12.1.025, 12.1.026, 12.1.027, 12.1.28, 12.1.29, 12.1.30, 12.2.0, 12.2.1, 12.2.2, 12.2.3, 12.2.4, 12.2.5, 13.0.1, 13.0.2, 13.1.1, 13.2.0, 13.2.1, 13.3.0, 14.0.0, 14.0.1, 14.0.2, 14.0.3, 14.1.0, 14.1.2, 14.1.3, 14.1.4, 14.1.5, 14.1.6, 14.1.7, 14.1.8, 14.1.9, 14.1.10, 14.1.11, 14.1.12, 14.1.13, 14.1.14, 14.1.15, 14.2.1, 14.2.2, 14.2.3, 14.3.0, 14.3.1, 14.3.2, 14.4.0, 14.4.1, 14.5.0, 14.5.1, 14.5.2, 14.6.0, 14.7.0, 14.8.0, 14.8.1

CPE External links

https://www.tenable.com/security/research/tra-2021-32

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Improper access control

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-20114

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in the default/recommended settings. A remote attacker can access the /cache/backup/ directory, which included sensitive database backup files.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TCExam: 12.0.013, 12.0.014, 12.1.000, 12.1.001, 12.1.002, 12.1.003, 12.1.004, 12.1.005, 12.1.006, 12.1.007, 12.1.008, 12.1.009, 12.1.010, 12.1.011, 12.1.012, 12.1.013, 12.1.014, 12.1.015, 12.1.016, 12.1.017, 12.1.018, 12.1.019, 12.1.020, 12.1.021, 12.1.022, 12.1.023, 12.1.024, 12.1.025, 12.1.026, 12.1.027, 12.1.28, 12.1.29, 12.1.30, 12.2.0, 12.2.1, 12.2.2, 12.2.3, 12.2.4, 12.2.5, 13.0.1, 13.0.2, 13.1.1, 13.2.0, 13.2.1, 13.3.0, 14.0.0, 14.0.1, 14.0.2, 14.0.3, 14.1.0, 14.1.2, 14.1.3, 14.1.4, 14.1.5, 14.1.6, 14.1.7, 14.1.8, 14.1.9, 14.1.10, 14.1.11, 14.1.12, 14.1.13, 14.1.14, 14.1.15, 14.2.1, 14.2.2, 14.2.3, 14.3.0, 14.3.1, 14.3.2, 14.4.0, 14.4.1, 14.5.0, 14.5.1, 14.5.2, 14.6.0, 14.7.0, 14.8.0, 14.8.1

CPE External links

https://www.tenable.com/security/research/tra-2021-32

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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