Multiple vulnerabilities in Apache OpenOffice

1) Privilege escalation

EUVDB-ID: #VU971

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-6803

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

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code with elevated privileges on the target system.
The weakness is caused by performing of improper operations for files that use a search path containing an unquoted element. Attackers can exploit the vulnerability by tricking the victim to execute arbitrary file downloaded by trojan horse application.
Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system that may lead to complete system compromise.

Mitigation

Update to version 4.1.3.
http://sourceforge.net/projects/openofficeorg.mirror/files/4.1.3/binaries/ru/Apache_OpenOffice_4.1.3...

Vulnerable software versions

OpenOffice: 4.0.0 - 4.1.2

External links

http://www.openoffice.org/security/cves/CVE-2016-6803.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Insecure DLL loading

EUVDB-ID: #VU972

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-6804

CWE-ID: CWE-427 - Uncontrolled Search Path Element

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code with elevated privileges on the target system.
The weakness is caused by improper search path operations by the affected software. By tricking the victim to save and run a malicious file, disguised as a DLL, attackers can execute arbitrary code.
Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system that may lead to complete system compromise.

Mitigation

Update to version 4.1.3.
http://sourceforge.net/projects/openofficeorg.mirror/files/4.1.3/binaries/ru/Apache_OpenOffice_4.1.3...

Vulnerable software versions

OpenOffice: 4.0.0 - 4.1.2

External links

http://www.openoffice.org/security/cves/CVE-2016-6804.html

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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