Multiple vulnerabilities in Oracle Communications Diameter Signaling Router (DSR)

Published: 2021-01-20

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2019-10086 CVE-2020-24750
CWE-ID	CWE-693 CWE-502
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #2 is available.
Vulnerable software Subscribe	Oracle Communications Diameter Signaling Router (DSR) Server applications / Other server solutions
Vendor	Oracle

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Protection mechanism failure

EUVDB-ID: #VU20844

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

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 Communications Diameter Signaling Router (DSR): 8.0.0.0 - 8.2.2.0

External links

http://www.oracle.com/security-alerts/cpujan2021.html?504207

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) Deserialization of Untrusted Data

EUVDB-ID: #VU47105

Risk: High

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

CVE-ID: CVE-2020-24750

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

Exploit availability: Yes