Multiple vulnerabilities in Oracle FLEXCUBE Private Banking

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU47428

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-2020-11979

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

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect patch for vulnerability #VU27924 (CVE-2020-1945). Apache Ant 1.10.8 changed the permissions of temporary files it created so that only the current user was allowed to access them. Unfortunately the fixcrlf task deleted the temporary file and created a new one without said protection, effectively nullifying the effort. This would still allow an attacker to inject modified source files into the build process.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle FLEXCUBE Private Banking: 12.0.0 - 12.1.0

External links

http://www.oracle.com/security-alerts/cpujul2021.html?3367

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.

Is there known malware, which exploits this vulnerability?

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

2) Improper input validation

EUVDB-ID: #VU52502

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-27218

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to manipulate or delete data.

The vulnerability exists due to improper input validation within the SC Admin server (Eclipse Jetty) component in Oracle Communications Converged Application Server - Service Controller. A remote non-authenticated attacker can exploit this vulnerability to manipulate or delete data.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle FLEXCUBE Private Banking: 12.0.0 - 12.1.0

External links

http://www.oracle.com/security-alerts/cpujul2021.html?3367

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) Improper Authentication

EUVDB-ID: #VU46680

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-11998

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote client to bypass authentication process.

The vulnerability exists due to an error in authentication process, caused by incorrect implementation of protection measures against JMX re-bind attack. A remote attacker can bypass authentication process by passing an empty environment map to RMIConnectorServer, instead of the map that contains the authentication credentials.As a result, a remote client can create javax.management.loading.MLet MBean and use it to create new MBeans from arbitrary URLs.

Successful exploitation of the vulnerability may allow an attacker to execute arbitrary code on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle FLEXCUBE Private Banking: 12.0.0 - 12.1.0

External links

http://www.oracle.com/security-alerts/cpujul2021.html?3367

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) Deserialization of Untrusted Data

EUVDB-ID: #VU31796

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-5413

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data. A remote attacker can abuse built-in feature to serialize gadgets to execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle FLEXCUBE Private Banking: 12.0.0 - 12.1.0

External links

http://www.oracle.com/security-alerts/cpujul2021.html?3367

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.

5) Improper Authentication

EUVDB-ID: #VU50072

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]

CVE-ID: CVE-2021-26117

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to a logic error in ActiveMQ LDAP login module when configured to to use anonymous access to the LDAP server. A remote attacker can provide a valid username and no password and gain unauthorized access to the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle FLEXCUBE Private Banking: 12.0.0 - 12.1.0

External links

http://www.oracle.com/security-alerts/cpujul2021.html?3367

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.