Multiple vulnerabilities in IBM AIX
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2018-12327 CVE-2018-7170 |
| CWE-ID | CWE-121 CWE-264 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
IBM AIX Operating systems & Components / Operating system |
| Vendor | IBM Corporation |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Stack-based buffer overflow
EUVDB-ID: #VU14448
Risk: Low
CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/U:Clear]
CVE-ID: CVE-2018-12327
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: Yes
DescriptionThe vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to stack-based buffer overflow in the Network Time Protocol Query (ntpq) program and Network Time Protocol daemon (ntpd) when handling malicious input. A local attacker can submit a long string argument for an IPv4 or IPv6 command-line parameter, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM AIX: 6.1 - 7.2
CPE2.3- cpe:2.3:o:ibm_corporation:ibm_aix:6.1:*:*:*:*:*:*:*
- cpe:2.3:o:ibm_corporation:ibm_aix:7.1:*:*:*:*:*:*:*
- cpe:2.3:o:ibm_corporation:ibm_aix:7.2:*:*:*:*:*:*:*
https://aix.software.ibm.com/aix/efixes/security/ntp_advisory11.asc
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. However, proof of concept for this vulnerability is available.
2) Security restrictions bypass
EUVDB-ID: #VU10801
Risk: Low
CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2018-7170
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated attacker to bypass security restrictions on the target system.
The weakness exists due to insufficient security restrictions. A remote attacker can create multiple crafted ephemeral associations to bypass security restrictions and modify the clock.
Install update from vendor's website.
Vulnerable software versionsIBM AIX: 6.1 - 7.2
CPE2.3- cpe:2.3:o:ibm_corporation:ibm_aix:6.1:*:*:*:*:*:*:*
- cpe:2.3:o:ibm_corporation:ibm_aix:7.1:*:*:*:*:*:*:*
- cpe:2.3:o:ibm_corporation:ibm_aix:7.2:*:*:*:*:*:*:*
https://aix.software.ibm.com/aix/efixes/security/ntp_advisory11.asc
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.
