Cisco IOS/IOS XE QoS Packet memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$5k-$25k0.00

Summaryinfo

A vulnerability was found in Cisco IOS and IOS XE. It has been rated as critical. This impacts an unknown function of the component QoS. The manipulation as part of Packet leads to memory corruption. This vulnerability is uniquely identified as CVE-2018-0151. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is recommended to apply restrictive firewalling.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco IOS and IOS XE (Router Operating System) (version unknown). This issue affects an unknown function of the component QoS. The manipulation as part of a Packet leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in the quality of service (QoS) subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges. The vulnerability is due to incorrect bounds checking of certain values in packets that are destined for UDP port 18999 of an affected device. An attacker could exploit this vulnerability by sending malicious packets to an affected device. When the packets are processed, an exploitable buffer overflow condition may occur. A successful exploit could allow the attacker to execute arbitrary code on the affected device with elevated privileges. The attacker could also leverage this vulnerability to cause the device to reload, causing a temporary DoS condition while the device is reloading. The malicious packets must be destined to and processed by an affected device. Traffic transiting a device will not trigger the vulnerability. Cisco Bug IDs: CSCvf73881.

The bug was discovered 03/28/2018. The weakness was disclosed 03/28/2018 as cisco-sa-20180328-qos as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2018-0151 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 price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 01/27/2025).

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 108720 (Cisco IOS Software Quality of Service Remote Code Execution Vulnerability), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316206 (Cisco IOS and IOS XE Software Quality of Service Remote Code Execution Vulnerability(cisco-sa-20180328-qos)). 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 udp/18999. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (108720) and SecurityFocus (BID 103540†). The entry VDB-115161 is pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

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EPSS Percentile: 🔍

KEV Added: 🔍
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KEV Ransomware: 🔍
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Current Price Estimation: 🔍

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Nessus ID: 108720
Nessus Name: Cisco IOS Software Quality of Service Remote Code Execution Vulnerability
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Firewalling: 🔍

Timelineinfo

11/27/2017 🔍
03/28/2018 +121 days 🔍
03/28/2018 +0 days 🔍
03/28/2018 +0 days 🔍
03/28/2018 +0 days 🔍
03/28/2018 +0 days 🔍
03/29/2018 +1 days 🔍
03/29/2018 +0 days 🔍
01/27/2025 +2496 days 🔍

Sourcesinfo

Vendor: cisco.com

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

CVE: CVE-2018-0151 (🔍)
GCVE (CVE): GCVE-0-2018-0151
GCVE (VulDB): GCVE-100-115157

OVAL: 🔍

SecurityFocus: 103540 - Cisco IOS and IOS XE Software CVE-2018-0151 Remote Code Execution Vulnerability
SecurityTracker: 1040582

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

Entryinfo

Created: 03/29/2018 09:14
Updated: 01/27/2025 21:51
Changes: 03/29/2018 09:14 (74), 01/17/2020 16:09 (5), 02/06/2021 10:57 (2), 04/23/2024 15:09 (27), 09/09/2024 22:29 (1), 01/27/2025 21:51 (1)
Complete: 🔍
Cache ID: 216::103

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