VDB-133232 · CVE-2019-0874 · BID 107749

Microsoft Azure DevOps Server 2019 cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Microsoft Azure DevOps Server 2019. Affected by this vulnerability is an unknown functionality. Such manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2019-0874. The attack can be launched remotely. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Microsoft Azure DevOps Server 2019 (Cloud Software) and classified as problematic. Affected by this issue is an unknown functionality. The manipulation with an unknown input 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:

A Cross-site Scripting (XSS) vulnerability exists when Azure DevOps Server does not properly sanitize user provided input, aka 'Azure DevOps Server Cross-site Scripting Vulnerability'.

The bug was discovered 04/03/2019. The weakness was disclosed 04/09/2019 by Mikhail as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. The public release has been coordinated in cooperation with the vendor. This vulnerability is handled as CVE-2019-0874 since 11/26/2018. The attack may be launched remotely. The successful exploitation needs a simple authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007. The advisory points out:

A Cross-site Scripting (XSS) vulnerability exists when Azure DevOps Server does not properly sanitize user provided input. An authenticated attacker could exploit the vulnerability by sending a specially crafted payload to the Team Foundation Server, which will get executed in the context of the user every time a user visits the compromised page.

The vulnerability was handled as a non-public zero-day exploit for at least 6 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 91520 (Microsoft Team Foundation Server Update for April 2019).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 107749†). The entries VDB-133223, VDB-133226, VDB-133227 and VDB-133228 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/26/2018 🔍
04/03/2019 +128 days 🔍
04/09/2019 +6 days 🔍
04/09/2019 +0 days 🔍
04/09/2019 +0 days 🔍
04/10/2019 +1 days 🔍
05/28/2020 +414 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Researcher: Mikhail
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2019-0874 (🔍)
GCVE (CVE): GCVE-0-2019-0874
GCVE (VulDB): GCVE-100-133232
SecurityFocus: 107749 - Microsoft Azure DevOps Server and Team Foundation Server Cross Site Scripting Vulnerability

See also: 🔍

Entryinfo

Created: 04/10/2019 09:03
Updated: 05/28/2020 11:06
Changes: 04/10/2019 09:03 (65), 05/28/2020 11:06 (5)
Complete: 🔍
Cache ID: 216::103

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

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