Risk | Low |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2018-0282 CVE-2018-0484 |
CWE-ID | CWE-20 CWE-119 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Cisco IOS/IOS XE Operating systems & Components / Operating system Cisco IOS Operating systems & Components / Operating system |
Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU16927
Risk: Low
CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-0282
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause DoS condition.
The vulnerability exists in the TCP socket code due to a state condition between the socket state and the transmission control block (TCB) state. A remote attacker can send specific HTTP requests at a sustained rate to a reachable IP address of the affected software and cause the affected device to reload, resulting in a denial of service (DoS) condition on an affected device.
MitigationInstall update from vendor's website.
Vulnerable software versionsCisco IOS/IOS XE: 15.2.2 E4
External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109-tcp
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.
EUVDB-ID: #VU16928
Risk: Low
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-2018-0484
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass security restrictions on the target system.
The vulnerability exists in the access control logic of the Secure Shell (SSH) server due to a missing check in the SSH server. A remote unauthenticated attacker can open an SSH connection to an affected Cisco IOS or IOS XE device with a source address belonging to a VRF instance and forward the instance despite the absence of the vrf-also keyword in the access-class configuration.
MitigationThe vulnerability has been fixed in the versions 16.6.5, 16.6(4.12), 15.8(3.1s)M, 15.8(3)M1.
Vulnerable software versionsCisco IOS: 16.6.2 - 16.6.4
External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190109-ios-ssh-vrf
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.