Multiple vulnerabilities in MIT Kerberos 5
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2018-5730 CVE-2018-5729 |
| CWE-ID | CWE-264 CWE-476 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Kerberos 5 Client/Desktop applications / Software for system administration |
| Vendor | MIT |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Security restrictions bypass
EUVDB-ID: #VU11076
Risk: Low
CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-5730
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated attacker to bypass security restrictions on a targeted system.
The weakness exists due to insufficient security restrictions. A remote attacker can add crafted principals to the Lightweight Directory Access Protocol (LDAP) database and bypass a DN containership check.
Install update from vendor's website.
Vulnerable software versionsKerberos 5: 1.4 - 1.6
External linkshttp://github.com/krb5/krb5/commit/e1caf6fb74981da62039846931ebdffed71309d1
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.
2) NULL pointer dereference
EUVDB-ID: #VU11080
Risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-5729
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to NULL pointer dereference. A local attacker can add crafted principals to the Lightweight Directory Access Protocol (LDAP) database and cause the service to crash.
Install update from vendor's website.
Vulnerable software versionsKerberos 5: 1.4 - 1.6
External linkshttp://github.com/krb5/krb5/commit/e1caf6fb74981da62039846931ebdffed71309d1
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.
