Multiple vulnerabilities in IBM AIX
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2018-0734 CVE-2018-5407 CVE-2018-14665 |
| CWE-ID | CWE-200 CWE-208 CWE-264 |
| Exploitation vector | Local |
| Public exploit |
Public exploit code for vulnerability #2 is available. Public exploit code for vulnerability #3 is available. |
| Vulnerable software Subscribe |
IBM AIX Operating systems & Components / Operating system |
| Vendor | IBM Corporation |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Information disclosure
EUVDB-ID: #VU15668
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-0734
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information.
The vulnerability exists due to unspecified flaw in Digital Signature Algorithm (DSA). A local attacker can conduct a timing side-channel attack and recover the private key, which could be used to conduct further attacks.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM AIX: 5.3 - 7.2
External linkshttp://aix.software.ibm.com/aix/efixes/security/openssl_advisory29.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.
2) Side-channel attack
EUVDB-ID: #VU15723
Risk: Low
CVSSv3.1: 4.4 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:U/RC:C]
CVE-ID: CVE-2018-5407
CWE-ID:
CWE-208 - Information Exposure Through Timing Discrepancy
Exploit availability: Yes
DescriptionThe vulnerability allows a physical attacker to obtain potentially sensitive information.
The vulnerability exists due to due to execution of engine sharing on SMT (e.g.Hyper-Threading) architectures when improper handling of information by the processor. A physical attacker can construct a timing side channel to hijack information from processes that are running in the same core.
Note: the vulnerability has been dubbed as PortSmash microarchitecture bug.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM AIX: 5.3 - 7.2
External linkshttp://aix.software.ibm.com/aix/efixes/security/openssl_advisory29.asc
Q & A
Can this vulnerability be exploited remotely?
No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.
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.
3) Privilege escalation
EUVDB-ID: #VU15538
Risk: Low
CVSSv3.1: 7.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C]
CVE-ID: CVE-2018-14665
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to gain elevated privileges on the target system.
The vulnerability exists due to improper handling of two command-line options, namely -logfile and -modulepath. A local user can specify a '-modulepath' argument with an insecure path to create, overwrite or delete any files with root privileges.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM AIX: 5.3 - 7.2
External linkshttp://aix.software.ibm.com/aix/efixes/security/xorg_advisory3.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, a fully functional exploit for this vulnerability is available.
