Apple Xcode up to 8.3.3 subversion input validation

CVSS Meta Temp Score
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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
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A vulnerability classified as critical has been found in Apple Xcode up to 8.3.3 (Programming Tool Software). This affects an unknown functionality of the component subversion. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-20. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 08/11/2017. The weakness was presented 09/20/2017 by Jonathan Nieder as HT208103 as confirmed advisory (Website). The advisory is shared at This vulnerability is uniquely identified as CVE-2017-9800 since 06/21/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 102871 (Amazon Linux AMI : subversion / mod_dav_svn (ALAS-2017-883)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks and running in the context local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196880 (Ubuntu Security Notification for Subversion Vulnerabilities (USN-3388-1)).

Upgrading to version 9.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 100259), SecurityTracker (ID 1039127) and Tenable (102871). See 93874, 105248, 107068 and 107069 for similar entries.





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍



VulDB Base Score: 🔍
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Class: Privilege escalation
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 102871
Nessus Name: Amazon Linux AMI : subversion / mod_dav_svn (ALAS-2017-883)
Nessus File: 🔍
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Nessus Context: 🔍

OpenVAS ID: 53676
OpenVAS Name: Debian Security Advisory DSA 3932-1 (subversion - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
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Recommended: Upgrade
Status: 🔍

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

Upgrade: Xcode 9.0


06/21/2017 🔍
08/10/2017 +50 days 🔍
08/11/2017 +1 days 🔍
08/11/2017 +0 days 🔍
09/01/2017 +21 days 🔍
09/20/2017 +19 days 🔍
09/20/2017 +0 days 🔍
09/25/2017 +5 days 🔍
01/14/2021 +1207 days 🔍



Advisory: HT208103
Researcher: Jonathan Nieder
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-9800 (🔍)

SecurityFocus: 100259 - Apache Subversion CVE-2017-9800 Remote Command Execution Vulnerability
SecurityTracker: 1039127

See also: 🔍


Created: 09/25/2017 11:03 AM
Updated: 01/14/2021 11:14 AM
Changes: (1) advisory_person_name
Complete: 🔍


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