ServiceNow report_viewer.do ${xyz} code injection

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.
7.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in ServiceNow. This affects an unknown function of the file report_viewer.do. Executing a manipulation of the argument ${xyz} as part of Parameter can lead to code injection. The identification of this vulnerability is CVE-2018-7748. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in ServiceNow (affected version not known). It has been declared as critical. This vulnerability affects some unknown functionality of the file report_viewer.do. The manipulation of the argument ${xyz} as part of a Parameter leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

report_viewer.do in ServiceNow Release Jakarta Patch 8 and earlier allows remote attackers to execute arbitrary code via '${xyz}' Glide Scripting Injection in the sysparm_media parameter.

The bug was discovered 07/27/2018. The weakness was shared 08/03/2018 (Website). The advisory is available at telekomsecurity.github.io. This vulnerability was named CVE-2018-7748 since 03/06/2018. The exploitation appears to be easy. The attack can be initiated remotely. A single authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/06/2018 🔍
07/27/2018 +142 days 🔍
08/03/2018 +6 days 🔍
08/03/2018 +0 days 🔍
08/04/2018 +1 days 🔍
03/13/2020 +587 days 🔍

Sourcesinfo

Advisory: telekomsecurity.github.io
Status: Not defined

CVE: CVE-2018-7748 (🔍)
GCVE (CVE): GCVE-0-2018-7748
GCVE (VulDB): GCVE-100-122614

Entryinfo

Created: 08/04/2018 08:11
Updated: 03/13/2020 12:03
Changes: 08/04/2018 08:11 (57), 03/13/2020 12:03 (1)
Complete: 🔍
Cache ID: 216::103

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