Cisco IOS XE GNU C Library (glibc) Buffer Overflow (CSCus69732) (GHOST)

critical Nessus Plugin ID 81594

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The remote Cisco device is running a version of Cisco IOS XE software that is affected by a heap-based buffer overflow vulnerability in the GNU C Library (glibc) due to improperly validated user-supplied input to the __nss_hostname_digits_dots(), gethostbyname(), and gethostbyname2() functions. This allows a remote attacker to cause a buffer overflow, resulting in a denial of service condition or the execution of arbitrary code.

Note that only the following devices are listed as affected :

- Cisco ASR 1000 Series Aggregation Services Routers
- Cisco ASR 920 Series Aggregation Services Routers
- Cisco ASR 900 Series Aggregation Services Routers
- Cisco 4400 Series Integrated Services Routers
- Cisco 4300 Series Integrated Services Routers
- Cisco Cloud Services Router 1000V Series

Solution

Apply the relevant patch referenced in Cisco bug ID CSCus69732.

See Also

https://tools.cisco.com/bugsearch/bug/CSCus69732

http://www.nessus.org/u?fd2144f8

http://www.nessus.org/u?c7a6ddbd

Plugin Details

Severity: Critical

ID: 81594

File Name: cisco-sa-20150128-ghost-iosxe_multi.nasl

Version: 1.10

Type: local

Family: CISCO

Published: 3/2/2015

Updated: 11/25/2019

Risk Information

CVSS Score Source: CVE-2015-0235

VPR

Risk Factor: Critical

Score: 9.8

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: E:H/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe

Required KB Items: Host/Cisco/IOS-XE/Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/20/2015

Vulnerability Publication Date: 1/27/2015

Exploitable With

Core Impact

Metasploit (Exim GHOST (glibc gethostbyname) Buffer Overflow)

Reference Information

CVE: CVE-2015-0235

BID: 72325

CERT: 967332

CISCO-BUG-ID: CSCus69732

CISCO-SA: cisco-sa-20150128-ghost