UrBackup Server up to 2.1.19 action cross site scripting

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 (≈)
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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.
4.9$0-$5k0.00

Summaryinfo

A vulnerability was found in UrBackup Server up to 2.1.19 and classified as problematic. The impacted element is an unknown function. Such manipulation of the argument action as part of Parameter leads to cross site scripting. This vulnerability is traded as CVE-2017-16950. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in UrBackup Server up to 2.1.19 (Backup Software). It has been rated as problematic. Affected by this issue is an unknown code. The manipulation of the argument action as part of a Parameter leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

Cross - site scripting (XSS) vulnerability in UrBackup Server before 2.1.20 allows remote attackers to inject arbitrary web script or HTML via the action parameter.

The bug was discovered 11/26/2017. The weakness was shared 12/17/2017 (Website). The advisory is shared for download at urbackup.org. This vulnerability is handled as CVE-2017-16950 since 11/26/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability was handled as a non-public zero-day exploit for at least 21 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.1.20 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
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: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: UrBackup Server 2.1.20

Timelineinfo

11/26/2017 🔍
11/26/2017 +0 days 🔍
12/17/2017 +21 days 🔍
12/17/2017 +0 days 🔍
12/17/2017 +0 days 🔍
12/15/2019 +728 days 🔍

Sourcesinfo

Advisory: urbackup.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-16950 (🔍)
GCVE (CVE): GCVE-0-2017-16950
GCVE (VulDB): GCVE-100-110744

Entryinfo

Created: 12/17/2017 09:40
Updated: 12/15/2019 16:26
Changes: 12/17/2017 09:40 (59), 12/15/2019 16:26 (2)
Complete: 🔍
Cache ID: 216:C28:103

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