Apache Subversion 1.8.x < 1.8.16 / 1.9.x < 1.9.4 Multiple Vulnerabilities

2016-02-0500:00:00

Tenable

www.tenable.com

CVSS2

4.9

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:P/I:P/A:N

CVSS3

6.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS

0.084

Percentile

94.4%

JSON

The version of Apache Subversion installed on the remote host is version 1.8.x prior to 1.8.16 or 1.9.x prior to 1.9.4. It is, therefore, affected by the following vulnerabilities :

A flaw exists within ‘svnserve/sasl’ that is triggered when handling a realm string which is a prefix of the expected realm string, which can cause an authenticated remote attacker to incorrectly authenticate into the wrong realm. This may allow the attacker to gain access to areas they would otherwise be restricted from. (CVE-2016-2167)
A flaw exists within ‘mod_authz_svn’ that is triggered as authorization checks are not properly performed on ‘COPY’ and ‘MOVE’ actions. This may allow a remote attacker to use a specially crafted header to crash the server. (CVE-2016-2168)
A ‘NULL pointer’ dereference flaw exists within the ‘mod_authz_svn’ module that is triggered when handling invalid headers for COPY and MOVE requests. This may allow a remote attacker to cause a Subversion server to crash. (CVE-2016-2168)