Multiple vulnerabilities in Oracle FLEXCUBE Private Banking



Risk High
Patch available YES
Number of vulnerabilities 8
CVE-ID CVE-2020-9489
CVE-2020-5408
CVE-2019-10086
CVE-2020-5421
CVE-2019-17638
CVE-2019-3773
CVE-2020-5413
CVE-2020-11998
CWE-ID CWE-401
CWE-330
CWE-693
CWE-20
CWE-672
CWE-611
CWE-502
CWE-287
Exploitation vector Network
Public exploit Public exploit code for vulnerability #4 is available.
Vulnerable software
 Oracle FLEXCUBE Private Banking
Other software / Other software solutions

Vendor Oracle

Security Bulletin

This security bulletin contains information about 8 vulnerabilities.

1) Memory leak

EUVDB-ID: #VU34420

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-9489

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

A carefully crafted or corrupt file may trigger a System.exit in Tika's OneNote Parser. Crafted or corrupted files can also cause out of memory errors and/or infinite loops in Tika's ICNSParser, MP3Parser, MP4Parser, SAS7BDATParser, OneNoteParser and ImageParser. Apache Tika users should upgrade to 1.24.1 or later. The vulnerabilities in the MP4Parser were partially fixed by upgrading the com.googlecode:isoparser:1.1.22 dependency to org.tallison:isoparser:1.9.41.2. For unrelated security reasons, we upgraded org.apache.cxf to 3.3.6 as part of the 1.24.1 release.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle FLEXCUBE Private Banking: 12.0.0 - 12.1.0

CPE2.3 External links

https://www.oracle.com/security-alerts/cpuapr2021.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.

2) Use of insufficiently random values

EUVDB-ID: #VU28463

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-5408

CWE-ID: CWE-330 - Use of Insufficiently Random Values

Exploit availability: No

Description

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

The vulnerability exists due to the affected software uses a fixed null initialization vector with CBC Mode in the implementation of the queryable text encryptor. A remote authenticated attacker can derive the unencrypted values using a dictionary attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle FLEXCUBE Private Banking: 12.0.0 - 12.1.0

CPE2.3 External links

https://www.oracle.com/security-alerts/cpuapr2021.html?3367


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) Protection mechanism failure

EUVDB-ID: #VU20844

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-10086

CWE-ID: CWE-693 - Protection Mechanism Failure

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exist due to Beanutils is not using by default the a special BeanIntrospector class in PropertyUtilsBean that was supposed to suppress the ability for an attacker to access the classloader via the class property available on all Java objects. A remote attacker can abuse such application behavior against applications that were developed to rely on this security feature.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle FLEXCUBE Private Banking: 12.0.0 - 12.1.0

CPE2.3 External links

https://www.oracle.com/security-alerts/cpuapr2021.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) Improper input validation

EUVDB-ID: #VU49739

Risk: Medium

CVSSv4.0: 5.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/E:P/U:Green]

CVE-ID: CVE-2020-5421

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

The vulnerability allows a remote authenticated user to read and manipulate data.

The vulnerability exists due to improper input validation within the Core (Spring Framework) component in Oracle Communications Session Report Manager. A remote authenticated user can exploit this vulnerability to read and manipulate data.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle FLEXCUBE Private Banking: 12.0.0 - 12.1.0

CPE2.3 External links

https://www.oracle.com/security-alerts/cpuapr2021.html?3367


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. However, proof of concept for this vulnerability is available.

5) Operation on a Resource after Expiration or Release

EUVDB-ID: #VU34161

Risk: High

CVSSv4.0: 8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-17638

CWE-ID: CWE-672 - Operation on a Resource after Expiration or Release

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

In Eclipse Jetty, versions 9.4.27.v20200227 to 9.4.29.v20200521, in case of too large response headers, Jetty throws an exception to produce an HTTP 431 error. When this happens, the ByteBuffer containing the HTTP response headers is released back to the ByteBufferPool twice. Because of this double release, two threads can acquire the same ByteBuffer from the pool and while thread1 is about to use the ByteBuffer to write response1 data, thread2 fills the ByteBuffer with response2 data. Thread1 then proceeds to write the buffer that now contains response2 data. This results in client1, which issued request1 and expects responses, to see response2 which could contain sensitive data belonging to client2 (HTTP session ids, authentication credentials, etc.).

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle FLEXCUBE Private Banking: 12.0.0 - 12.1.0

CPE2.3 External links

https://www.oracle.com/security-alerts/cpuapr2021.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.

6) XML External Entity injection

EUVDB-ID: #VU17185

Risk: Low

CVSSv4.0: 6.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-3773

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to conduct XXE-attack.

The vulnerability exists due to improper handling of XML External Entities (XXEs) when parsing an XML file. A remote attacker can supply a specially crafted input and obtain potentially sensitive information or cause the service to crash

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle FLEXCUBE Private Banking: 12.0.0 - 12.1.0

CPE2.3 External links

https://www.oracle.com/security-alerts/cpuapr2021.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.

7) Deserialization of Untrusted Data

EUVDB-ID: #VU31796

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-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

CPE2.3 External links

https://www.oracle.com/security-alerts/cpuapr2021.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.

8) Improper Authentication

EUVDB-ID: #VU46680

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-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

CPE2.3 External links

https://www.oracle.com/security-alerts/cpuapr2021.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.



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