#VU57327 XML External Entity injection in TIBCO products - CVE-2021-35496

Vulnerability identifier: #VU57327

Vulnerability risk: Medium

CVSSv4.0: 0.4 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-35496

CWE-ID: CWE-611

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
TIBCO JasperReports Server
Web applications / Other software
TIBCO JasperReports Server - Community Edition
Server applications / Other server solutions
TIBCO JasperReports Server - Developer Edition
Server applications / Other server solutions
TIBCO JasperReports Server for AWS Marketplace
Server applications / Other server solutions
TIBCO JasperReports Server for ActiveMatrix BPM
Server applications / Other server solutions
TIBCO JasperReports Server for Microsoft Azure
Server applications / Other server solutions

Vendor: JasperSoft
TIBCO

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to insufficient validation of user-supplied XML input in the XMLA Connections component. A remote authenticated attacker can gain unauthorized read access, as well as unauthorized update, insert or delete access to a subset of the affected systems data and cause a denial of servie (DoS) condition.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

TIBCO JasperReports Server: 4.7 - 7.9.0

TIBCO JasperReports Server - Community Edition: 7.8.0

TIBCO JasperReports Server - Developer Edition: 7.9.0

TIBCO JasperReports Server for AWS Marketplace: 7.9.0

TIBCO JasperReports Server for ActiveMatrix BPM: 7.9.0

TIBCO JasperReports Server for Microsoft Azure: 7.8.0

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External links
https://www.tibco.com/services/support/advisories
https://www.tibco.com/support/advisories/2021/10/tibco-security-advisory-october-12-2021-tibco-jasperreports-server-2021-35496

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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.