Multiple vulnerabilities in Oracle Communications Cloud Native Core Network Exposure Function
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2023-31582 CVE-2023-5072 CVE-2023-36478 CVE-2023-22102 |
| CWE-ID | CWE-331 CWE-770 CWE-190 CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Oracle Communications Cloud Native Core Network Exposure Function Server applications / Other server solutions |
| Vendor | Oracle |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Insufficient entropy
EUVDB-ID: #VU83977
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-31582
CWE-ID:
CWE-331 - Insufficient Entropy
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to brute-force JWT token.
The vulnerability exists due to usage of insufficient entropy when generating JWT token. A remote attacker can brute-force the JWT token and gain unauthorized access to the application.
Install update from vendor's website.
Vulnerable software versionsOracle Communications Cloud Native Core Network Exposure Function: 23.3.1
External linkshttp://www.oracle.com/security-alerts/cpujan2024.html?952634
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) Allocation of Resources Without Limits or Throttling
EUVDB-ID: #VU82276
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-5072
CWE-ID:
CWE-770 - Allocation of Resources Without Limits or Throttling
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to allocation of resources without limits or throttling. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsOracle Communications Cloud Native Core Network Exposure Function: 23.3.1
External linkshttp://www.oracle.com/security-alerts/cpujan2024.html?952634
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) Integer overflow
EUVDB-ID: #VU81726
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-36478
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to integer overflow in MetaDataBuilder.checkSize when handling HTTP/2 HPACK header values. A remote attacker can send specially crafted request to the server, trigger an integer overflow and crash the server.
Install update from vendor's website.
Vulnerable software versionsOracle Communications Cloud Native Core Network Exposure Function: 23.3.1
External linkshttp://www.oracle.com/security-alerts/cpujan2024.html?952634
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: #VU82144
Risk: High
CVSSv3.1: 7.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-22102
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The vulnerability exists due to improper input validation within the Connector/J component in MySQL Connectors. A remote non-authenticated attacker can exploit this vulnerability to execute arbitrary code.
MitigationInstall update from vendor's website.
Vulnerable software versionsOracle Communications Cloud Native Core Network Exposure Function: 23.3.1
External linkshttp://www.oracle.com/security-alerts/cpujan2024.html?952634
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.
