VDB-126668 · CVE-2018-19203 · Qualys 13349

PRTG Network Monitor up to 18.2 PRTG Core Server Service HTTP Request input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in PRTG Network Monitor up to 18.2. This vulnerability affects unknown code of the component PRTG Core Server Service. Such manipulation as part of HTTP Request leads to input validation. This vulnerability is listed as CVE-2018-19203. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in PRTG Network Monitor up to 18.2 (Network Management Software). Affected by this issue is an unknown part of the component PRTG Core Server Service. The manipulation as part of a HTTP Request leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

PRTG Network Monitor before 18.2.41.1652 allows remote unauthenticated attackers to terminate the PRTG Core Server Service via a special HTTP request.

The bug was discovered 10/25/2018. The weakness was presented 11/12/2018 (Website). The advisory is shared for download at en.securitylab.ru. This vulnerability is handled as CVE-2018-19203 since 11/12/2018. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 18 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 13349 (PRTG Network Monitor Denial Of Service vulnerability).

Upgrading to version 18.2.41.1652 eliminates this vulnerability.

See VDB-126669 for similar entry. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Network Management Software

Name

PRTG Network Monitor

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PRTG Network Monitor 18.2.41.1652

Timelineinfo

10/25/2018 🔍
11/12/2018 +18 days 🔍
11/12/2018 +0 days 🔍
11/12/2018 +0 days 🔍
11/13/2018 +1 days 🔍
04/11/2020 +515 days 🔍

Sourcesinfo

Advisory: en.securitylab.ru
Status: Not defined

CVE: CVE-2018-19203 (🔍)
GCVE (CVE): GCVE-0-2018-19203
GCVE (VulDB): GCVE-100-126668
See also: 🔍

Entryinfo

Created: 11/13/2018 07:55
Updated: 04/11/2020 17:14
Changes: 11/13/2018 07:55 (65), 04/11/2020 17:14 (1)
Complete: 🔍
Cache ID: 216::103