VDB-136603 · CVE-2018-20013 · GCVE-0-2018-20013

UrBackup 2.2.6 CClientThread.cpp ProcessPacket Request Shutdown 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.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in UrBackup 2.2.6. It has been classified as problematic. Impacted is the function CClientThread::ProcessPacket of the file fileservplugin/CClientThread.cpp. This manipulation as part of Request causes input validation (Shutdown). This vulnerability appears as CVE-2018-20013. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic was found in UrBackup 2.2.6 (Backup Software). Affected by this vulnerability is the function CClientThread::ProcessPacket of the file fileservplugin/CClientThread.cpp. The manipulation as part of a Request leads to a input validation vulnerability (Shutdown). The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

In UrBackup 2.2.6, an attacker can send a malformed request to the client over the network, and trigger a fileservplugin/CClientThread.cpp CClientThread::ProcessPacket metadata_id!=0 assertion, leading to shutting down the client application.

The weakness was presented 06/18/2019. This vulnerability is known as CVE-2018-20013 since 12/10/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Backup Software

Name

UrBackup

Version

2.2.6

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Shutdown
Class: Input validation / Shutdown
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/10/2018 🔍
06/18/2019 +190 days 🔍
06/18/2019 +0 days 🔍
10/06/2023 +1571 days 🔍

Sourcesinfo

Advisory: urbackup.org
Status: Not defined

CVE: CVE-2018-20013 (🔍)
GCVE (CVE): GCVE-0-2018-20013
GCVE (VulDB): GCVE-100-136603

Entryinfo

Created: 06/18/2019 17:54
Updated: 10/06/2023 08:20
Changes: 06/18/2019 17:54 (37), 06/25/2020 10:27 (18), 10/06/2023 08:20 (3)
Complete: 🔍
Cache ID: 216::103