VDB-115163 · CVE-2018-0158 · BID 103566

Cisco IOS/IOS XE IKEv2 memory leak

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Cisco IOS and IOS XE. This issue affects some unknown processing of the component IKEv2 Handler. The manipulation leads to input validation. This vulnerability is listed as CVE-2018-0158. The attack may be initiated remotely. In addition, an exploit is available. It is recommended to apply restrictive firewalling.

Detailsinfo

A vulnerability was found in Cisco IOS and IOS XE (Router Operating System) (version now known). It has been rated as problematic. This issue affects some unknown processing of the component IKEv2 Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability. The summary by CVE is:

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device to be processed. A successful exploit could cause an affected device to continuously consume memory and eventually reload, resulting in a DoS condition. Cisco Bug IDs: CSCvf22394.

The bug was discovered 03/28/2018. The weakness was presented 03/28/2018 as cisco-sa-20180328-ike as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2018-0158 since 11/27/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but an exploit is available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

It is declared as attacked. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316215 (Cisco IOS and IOS XE Software Internet Key Exchange Memory Leak Vulnerability(cisco-sa-20180328-ike)). The CISA Known Exploited Vulnerabilities Catalog lists this issue since 03/03/2022 with a due date of 03/17/2022:

Apply updates per vendor instructions.

Addressing this vulnerability is possible by firewalling .

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 103566†). See VDB-115164 and VDB-115161 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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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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NVD Base Score: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

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 🔍
09/09/2024 +2356 days 🔍

Sourcesinfo

Vendor: cisco.com

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

CVE: CVE-2018-0158 (🔍)
GCVE (CVE): GCVE-0-2018-0158
GCVE (VulDB): GCVE-100-115163

OVAL: 🔍

SecurityFocus: 103566 - Cisco IOS and IOS XE Software Internet Key Exchang CVE-2018-0158 Denial of Service Vulnerability
SecurityTracker: 1040595

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

Entryinfo

Created: 03/29/2018 09:14
Updated: 09/09/2024 22:29
Changes: 03/29/2018 09:14 (65), 01/17/2020 16:37 (4), 02/06/2021 11:15 (3), 04/23/2024 15:51 (27), 07/17/2024 08:32 (2), 09/09/2024 22:29 (1)
Complete: 🔍
Cache ID: 216::103

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