Multiple vulnerabilities in IBM AIX and IBM VIOS
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2023-52425 CVE-2023-52426 CVE-2023-6597 |
| CWE-ID | CWE-400 CWE-776 CWE-61 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
IBM VIOS Server applications / Application servers IBM AIX Operating systems & Components / Operating system |
| Vendor | IBM Corporation |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Resource exhaustion
EUVDB-ID: #VU86230
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-2023-52425
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when parsing large tokens. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM VIOS: 4.1
IBM AIX: 7.3
External linkshttp://www.ibm.com/support/pages/node/7148151
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) XML Entity Expansion
EUVDB-ID: #VU86231
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-2023-52426
CWE-ID:
CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to recursive XML Entity Expansion if XML_DTD is undefined at compile time. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Install update from vendor's website.
Vulnerable software versionsIBM VIOS: 4.1
IBM AIX: 7.3
External linkshttp://www.ibm.com/support/pages/node/7148151
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) UNIX symbolic link following
EUVDB-ID: #VU87185
Risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-6597
CWE-ID:
CWE-61 - UNIX Symbolic Link (Symlink) Following
Exploit availability: No
DescriptionThe vulnerability allows a local user to delete arbitrary files on the system.
The vulnerability exists due to a symlink following issue during cleanup when handling temporary files. A local user can create a specially crafted symbolic link to a critical file on the system and delete it.
Install update from vendor's website.
Vulnerable software versionsIBM VIOS: 4.1
IBM AIX: 7.3
External linkshttp://www.ibm.com/support/pages/node/7148151
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.
