Multiple vulnerabilities in TIBCO PartnerExpress

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU58224

Risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-43046

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

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly impose security restrictions in the Interior Server and Gateway Server components, which leads to security restrictions bypass and privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TIBCO PartnerExpress: 6.0.0 - 6.2.1

CPE2.3

External links

http://www.tibco.com/services/support/advisories
http://www.tibco.com/support/advisories/2021/11/tibco-security-advisory-november-16-2021-tibco-partnerexpress-2021-43046

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.

2) Input validation error

EUVDB-ID: #VU58228

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-43048

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the system.

The vulnerability exists due to clickjacking issue in the Interior Server and Gateway Server components. A remote attacker can perform a clickjacking attack and gain full administrative access to the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TIBCO PartnerExpress: 6.0.0 - 6.2.1

CPE2.3

External links

http://www.tibco.com/services/support/advisories
http://www.tibco.com/support/advisories/2021/11/tibco-security-advisory-november-16-2021-tibco-partnerexpress-2021-43048

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.

3) Stored cross-site scripting

EUVDB-ID: #VU58227

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-43047

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 Interior Server and Gateway Server components. 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

TIBCO PartnerExpress: 6.0.0 - 6.2.1

CPE2.3

External links

http://www.tibco.com/services/support/advisories
http://www.tibco.com/support/advisories/2021/11/tibco-security-advisory-november-16-2021-tibco-partnerexpress-2021-43047

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.

4) Cross-site scripting

EUVDB-ID: #VU58225

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-43047

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 Interior Server and Gateway Server components. A remote authenticated attacker can trick the victim to follow a specially crafted link 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

TIBCO PartnerExpress: 6.0.0 - 6.2.1

CPE2.3

External links

http://www.tibco.com/services/support/advisories
http://www.tibco.com/support/advisories/2021/11/tibco-security-advisory-november-16-2021-tibco-partnerexpress-2021-43047

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.

Risk	High
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2021-43046 CVE-2021-43048 CVE-2021-43047
CWE-ID	CWE-264 CWE-20 CWE-79
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	TIBCO PartnerExpress Other software / Other software solutions
Vendor	TIBCO