VDB-115162 · CVE-2018-0157 · BID 103561

Cisco IOS XE Zone-Based Firewall Fragmented Packet data processing

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Cisco IOS XE. This vulnerability affects unknown code of the component Zone-Based Firewall. Executing a manipulation as part of Fragmented Packet can lead to data processing. This vulnerability is tracked as CVE-2018-0157. The attack can be launched remotely. No exploit exists. The application of restrictive firewalling is recommended.

Detailsinfo

A vulnerability was found in Cisco IOS XE (Router Operating System) (unknown version). It has been declared as problematic. This vulnerability affects an unknown code block of the component Zone-Based Firewall. The manipulation as part of a Fragmented Packet leads to a data processing vulnerability. The CWE definition for the vulnerability is CWE-19. As an impact it is known to affect availability. CVE summarizes:

A vulnerability in the Zone-Based Firewall code of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a device to reload. The vulnerability is due to the way fragmented packets are handled in the firewall code. An attacker could exploit this vulnerability by sending fragmented IP Version 4 or IP Version 6 packets through an affected device. An exploit could allow the attacker to cause the device to crash, resulting in a denial of service (DoS) condition. The following releases of Cisco IOS XE Software are vulnerable: Everest-16.4.1, Everest-16.4.2, Everest-16.5.1, Everest-16.5.1b, Everest-16.6.1, Everest-16.6.1a. Cisco Bug IDs: CSCvf60296.

The bug was discovered 03/28/2018. The weakness was disclosed 03/28/2018 as cisco-sa-20180328-fwip as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability was named CVE-2018-0157 since 11/27/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 316217 (Cisco IOS XE Software Zone-Based Firewall IP Fragmentation Denial of Service Vulnerability(cisco-sa-20180328-fwip)).

Proper firewalling of is able to address this issue.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 103561†). The entries VDB-115165 and VDB-115158 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.6
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Data processing
CWE: CWE-19
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/27/2017 🔍
03/28/2018 +121 days 🔍
03/28/2018 +0 days 🔍
03/28/2018 +0 days 🔍
03/28/2018 +0 days 🔍
03/29/2018 +1 days 🔍
02/06/2021 +1045 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20180328-fwip
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-0157 (🔍)
GCVE (CVE): GCVE-0-2018-0157
GCVE (VulDB): GCVE-100-115162

OVAL: 🔍

SecurityFocus: 103561 - Cisco IOS XE Software CVE-2018-0157 Denial of Service Vulnerability
SecurityTracker: 1040593

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 03/29/2018 09:14
Updated: 02/06/2021 11:12
Changes: 03/29/2018 09:14 (66), 01/17/2020 16:30 (4), 02/06/2021 11:12 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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