ID CVE-2015-3184
Summary mod_authz_svn in Apache Subversion 1.7.x before 1.7.21 and 1.8.x before 1.8.14, when using Apache httpd 2.4.x, does not properly restrict anonymous access, which allows remote anonymous users to read hidden files via the path name.
References
Vulnerable Configurations
  • Apple Xcode 7.2.1
    cpe:2.3:a:apple:xcode:7.2.1
  • Apache Software Foundation Subversion 1.7.9
    cpe:2.3:a:apache:subversion:1.7.9
  • Apache Software Foundation Subversion 1.7.8
    cpe:2.3:a:apache:subversion:1.7.8
  • Apache Software Foundation Subversion 1.7.7
    cpe:2.3:a:apache:subversion:1.7.7
  • Apache Software Foundation Subversion 1.7.6
    cpe:2.3:a:apache:subversion:1.7.6
  • Apache Software Foundation Subversion 1.7.5
    cpe:2.3:a:apache:subversion:1.7.5
  • Apache Software Foundation Subversion 1.7.4
    cpe:2.3:a:apache:subversion:1.7.4
  • Apache Software Foundation Subversion 1.7.3
    cpe:2.3:a:apache:subversion:1.7.3
  • Apache Software Foundation Subversion 1.7.2
    cpe:2.3:a:apache:subversion:1.7.2
  • Apache Software Foundation Subversion 1.7.19
    cpe:2.3:a:apache:subversion:1.7.19
  • Apache Software Foundation Subversion 1.7.18
    cpe:2.3:a:apache:subversion:1.7.18
  • Apache Software Foundation Subversion 1.7.17
    cpe:2.3:a:apache:subversion:1.7.17
  • Apache Software Foundation Subversion 1.7.16
    cpe:2.3:a:apache:subversion:1.7.16
  • Apache Software Foundation Subversion 1.7.15
    cpe:2.3:a:apache:subversion:1.7.15
  • Apache Software Foundation Subversion 1.7.14
    cpe:2.3:a:apache:subversion:1.7.14
  • Apache Software Foundation Subversion 1.7.13
    cpe:2.3:a:apache:subversion:1.7.13
  • Apache Software Foundation Subversion 1.7.12
    cpe:2.3:a:apache:subversion:1.7.12
  • Apache Software Foundation Subversion 1.7.11
    cpe:2.3:a:apache:subversion:1.7.11
  • Apache Software Foundation Subversion 1.7.10
    cpe:2.3:a:apache:subversion:1.7.10
  • Apache Software Foundation Subversion 1.7.1
    cpe:2.3:a:apache:subversion:1.7.1
  • Apache Software Foundation Subversion 1.7.0
    cpe:2.3:a:apache:subversion:1.7.0
  • Apache Software Foundation Subversion 1.7.20
    cpe:2.3:a:apache:subversion:1.7.20
  • Apache Software Foundation Subversion 1.8.9
    cpe:2.3:a:apache:subversion:1.8.9
  • Apache Software Foundation Subversion 1.8.8
    cpe:2.3:a:apache:subversion:1.8.8
  • Apache Software Foundation Subversion 1.8.7
    cpe:2.3:a:apache:subversion:1.8.7
  • Apache Software Foundation Subversion 1.8.6
    cpe:2.3:a:apache:subversion:1.8.6
  • Apache Software Foundation Subversion 1.8.5
    cpe:2.3:a:apache:subversion:1.8.5
  • Apache Software Foundation Subversion 1.8.4
    cpe:2.3:a:apache:subversion:1.8.4
  • Apache Software Foundation Subversion 1.8.3
    cpe:2.3:a:apache:subversion:1.8.3
  • Apache Software Foundation Subversion 1.8.2
    cpe:2.3:a:apache:subversion:1.8.2
  • Apache Software Foundation Subversion 1.8.0
    cpe:2.3:a:apache:subversion:1.8.0
  • Apache Software Foundation Subversion 1.8.11
    cpe:2.3:a:apache:subversion:1.8.11
  • Apache Software Foundation Subversion 1.8.13
    cpe:2.3:a:apache:subversion:1.8.13
  • Apache Software Foundation Subversion 1.8.10
    cpe:2.3:a:apache:subversion:1.8.10
  • Apache Software Foundation Subversion 1.8.1
    cpe:2.3:a:apache:subversion:1.8.1
  • Apache Software Foundation Apache HTTP Server 2.4.1
    cpe:2.3:a:apache:http_server:2.4.1
  • Apache Software Foundation Apache HTTP Server 2.4.2
    cpe:2.3:a:apache:http_server:2.4.2
  • Apache Software Foundation Apache HTTP Server 2.4.3
    cpe:2.3:a:apache:http_server:2.4.3
  • Apache Software Foundation Apache HTTP Server 2.4.4
    cpe:2.3:a:apache:http_server:2.4.4
  • Apache Software Foundation Apache HTTP Server 2.4.6
    cpe:2.3:a:apache:http_server:2.4.6
  • Apache Software Foundation Apache HTTP Server 2.4.7
    cpe:2.3:a:apache:http_server:2.4.7
  • Apache Software Foundation Apache HTTP Server 2.4.9
    cpe:2.3:a:apache:http_server:2.4.9
  • Apache Software Foundation Apache HTTP Server 2.4.10
    cpe:2.3:a:apache:http_server:2.4.10
  • Apache Software Foundation Apache HTTP Server 2.4.12
    cpe:2.3:a:apache:http_server:2.4.12
  • Apache Software Foundation Apache HTTP Server 2.4.14
    cpe:2.3:a:apache:http_server:2.4.14
  • Apache Software Foundation Apache HTTP Server 2.4.16
    cpe:2.3:a:apache:http_server:2.4.16
CVSS
Base: 5.0 (as of 01-04-2016 - 14:23)
Impact:
Exploitability:
CWE CWE-200
CAPEC
  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.
  • Reusing Session IDs (aka Session Replay)
    This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.
  • Using Slashes in Alternate Encoding
    This attack targets the encoding of the Slash characters. An attacker would try to exploit common filtering problems related to the use of the slashes characters to gain access to resources on the target host. Directory-driven systems, such as file systems and databases, typically use the slash character to indicate traversal between directories or other container components. For murky historical reasons, PCs (and, as a result, Microsoft OSs) choose to use a backslash, whereas the UNIX world typically makes use of the forward slash. The schizophrenic result is that many MS-based systems are required to understand both forms of the slash. This gives the attacker many opportunities to discover and abuse a number of common filtering problems. The goal of this pattern is to discover server software that only applies filters to one version, but not the other.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL NONE NONE
nessus via4
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201610-05.NASL
    description The remote host is affected by the vulnerability described in GLSA-201610-05 (Subversion, Serf: Multiple Vulnerabilities) Multiple vulnerabilities have been discovered in Subversion and Serf. Please review the CVE identifiers referenced below for details Impact : A remote attacker could possibly execute arbitrary code with the privileges of the process, conduct a man-in-the-middle attack, obtain sensitive information, or cause a Denial of Service Condition. Workaround : There is no known workaround at this time.
    last seen 2019-02-21
    modified 2016-10-12
    plugin id 93992
    published 2016-10-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=93992
    title GLSA-201610-05 : Subversion, Serf: Multiple Vulnerabilities
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2015-949.NASL
    description This update fixes the following security issues : - CVE-2015-5343: Possible remotely triggerable heap overflow and out-of-bounds read in mod_dav_svn caused by integer overflow when parsing skel-encoded request bodies. (bsc#958300) - CVE-2015-3184: mod_authz_svn information leak information in mixed anonymous/authenticated httpd (dav) configurations (bsc#939514) - CVE-2015-3187: hidden paths leaked by path-based authz (bsc#939517)
    last seen 2019-02-21
    modified 2016-10-13
    plugin id 87624
    published 2015-12-29
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=87624
    title openSUSE Security Update : subversion (openSUSE-2015-949)
  • NASL family MacOS X Local Security Checks
    NASL id MACOSX_XCODE_7_3.NASL
    description The version of Apple Xcode installed on the remote Mac OS X host is prior to 7.3. It is, therefore, affected by multiple vulnerabilities : - A flaw exists in Apache Subversion in mod_authz_svn due to a failure to properly restrict anonymous access. An unauthenticated, remote attacker can exploit this, via a crafted path name, to read hidden files. (CVE-2015-3184) - A flaw exists in Apache Subversion in the svn_repos_trace_node_locations() function that causes the first readable path to be returned when it encounters an unreadable path when following a node's history. An authenticated, remote attacker can exploit this to access paths that were intended to be hidden. (CVE-2015-3187) - Multiple unspecified memory corruption issues exist in otool due to improper validation of user-supplied input. A local attacker can exploit these to cause a denial of service or to execute arbitrary code. (CVE-2016-1765)
    last seen 2019-02-21
    modified 2018-07-14
    plugin id 90148
    published 2016-03-24
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90148
    title Apple Xcode < 7.3 Multiple Vulnerabilities (Mac OS X)
  • NASL family Amazon Linux Local Security Checks
    NASL id ALA_ALAS-2016-676.NASL
    description It was found that when an SVN server (both svnserve and httpd with the mod_dav_svn module) searched the history of a file or a directory, it would disclose its location in the repository if that file or directory was not readable (for example, if it had been moved). (CVE-2015-3187) An integer overflow was discovered allowing remote attackers to execute arbitrary code via an svn:// protocol string, which triggers a heap-based buffer overflow and an out-of-bounds read. (CVE-2015-5259) It was found that the mod_authz_svn module did not properly restrict anonymous access to Subversion repositories under certain configurations when used with Apache httpd 2.4.x. This could allow a user to anonymously access files in a Subversion repository, which should only be accessible to authenticated users. (CVE-2015-3184) It was found that the mod_dav_svn module was vulnerable to a remotely triggerable heap-based buffer overflow and out-of-bounds read caused by an integer overflow when parsing skel-encoded request bodies, allowing an attacker with write access to a repository to cause a denial of service attack (on 32-bit or 64-bit servers) or possibly execute arbitrary code (on 32-bit servers only) under the context of the httpd process. (CVE-2015-5343)
    last seen 2019-02-21
    modified 2018-04-18
    plugin id 90269
    published 2016-04-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90269
    title Amazon Linux AMI : mod_dav_svn / subversion (ALAS-2016-676)
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_57BB5E3D3C4F11E5A4D4001E8C75030D.NASL
    description Subversion reports : CVE-2015-3184 : Subversion's mod_authz_svn does not properly restrict anonymous access in some mixed anonymous/authenticated environments when using Apache httpd 2.4. CVE-2015-3187 : Subversion servers, both httpd and svnserve, will reveal some paths that should be hidden by path-based authz.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 85257
    published 2015-08-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85257
    title FreeBSD : subversion -- multiple vulnerabilities (57bb5e3d-3c4f-11e5-a4d4-001e8c75030d)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-3331.NASL
    description Several security issues have been found in the server components of the version control system subversion. - CVE-2015-3184 Subversion's mod_authz_svn does not properly restrict anonymous access in some mixed anonymous/authenticated environments when using Apache httpd 2.4. The result is that anonymous access may be possible to files for which only authenticated access should be possible. This issue does not affect the oldstable distribution (wheezy) because it only contains Apache httpd 2.2. - CVE-2015-3187 Subversion servers, both httpd and svnserve, will reveal some paths that should be hidden by path-based authz. When a node is copied from an unreadable location to a readable location the unreadable path may be revealed. This vulnerablity only reveals the path, it does not reveal the contents of the path.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 85354
    published 2015-08-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85354
    title Debian DSA-3331-1 : subversion - security update
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2015-6EFA349A85.NASL
    description This update includes the latest stable release of _Apache Subversion 1.8_, version **1.8.15**. This update fixes two security issues: * **CVE-2015-3184**: Subversion's mod_authz_svn does not properly restrict anonymous access in some mixed anonymous/authenticated environments when using Apache httpd 2.4. http://subversion.apache.org/security/CVE-2015-3184-advisory.txt * **CVE-2015-3187**: Subversion servers, both httpd and svnserve, will reveal some paths that should be hidden by path-based authz. http://subversion.apache.org/security/CVE-2015-3187-advisory.txt ### User- visible changes: #### Client-side bugfixes: * gpg-agent: fix crash with non- canonical $HOME * document svn:autoprops * cp: fix 'svn cp ^/A/D/H at 1 ^/A' to properly create A * resolve: improve conflict prompts for binary files * ls: improve performance of '-v' on tag directories * improved Sqlite 3.8.9 query performance regression on externals * fixed [issue 4580](http://subversion.tigris.org/issues/show_bug.cgi?id=4580): 'svn -v st' on file externals reports '?' instead of user and revision after 'svn up' #### Client-side and server-side bugfixes: * fix a segfault with old style text delta #### Server-side bugfixes: * fsfs: reduce memory allocation with Apache * mod_dav_svn: emit first log items as soon as possible * mod_dav_svn: use LimitXMLRequestBody for skel-encoded requests * mod_dav_svn: do not ignore skel parsing errors * detect invalid svndiff data earlier * prevent possible repository corruption on power/disk failures * fixed [issue 4577](http://subversion.tigris.org/issues/show_bug.cgi?id=4577): Read error with nodes whose DELTA chain starts with a PLAIN rep * fixed [issue 4531](http://subversion.tigris.org/issues/show_bug.cgi?id=4531): server-side copy (over dav) is slow and uses too much memory #### Bindings bugfixes: * swig: fix memory corruption in svn_client_copy_source_t ### Developer-visible changes: #### General: * avoid failing some tests on versions of Python with a very old sqlite * fix Ruby tests so they don't use the users real configuration #### Bindings: * swig-pl: fix some stack memory problems Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2016-10-18
    plugin id 89276
    published 2016-03-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=89276
    title Fedora 22 : subversion-1.8.15-1.fc22 (2015-6efa349a85)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2015-549.NASL
    description subversion was updated to version 1.8.14 to fix two security issues. These security issues were fixed : - CVE-2015-3187: Information leak (only paths) that were hidden by path-based authz (bsc#939517). - CVE-2015-3184: Information leak in mixed anonymous/authenticated httpd (dav) configurations (bsc#939514).
    last seen 2019-02-21
    modified 2015-08-19
    plugin id 85524
    published 2015-08-19
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85524
    title openSUSE Security Update : subversion (openSUSE-2015-549)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20150908_SUBVERSION_ON_SL7_X.NASL
    description An assertion failure flaw was found in the way the SVN server processed certain requests with dynamically evaluated revision numbers. A remote attacker could use this flaw to cause the SVN server (both svnserve and httpd with the mod_dav_svn module) to crash. (CVE-2015-0248) It was found that the mod_authz_svn module did not properly restrict anonymous access to Subversion repositories under certain configurations when used with Apache httpd 2.4.x. This could allow a user to anonymously access files in a Subversion repository, which should only be accessible to authenticated users. (CVE-2015-3184) It was found that the mod_dav_svn module did not properly validate the svn:author property of certain requests. An attacker able to create new revisions could use this flaw to spoof the svn:author property. (CVE-2015-0251) It was found that when an SVN server (both svnserve and httpd with the mod_dav_svn module) searched the history of a file or a directory, it would disclose its location in the repository if that file or directory was not readable (for example, if it had been moved). (CVE-2015-3187) After installing the updated packages, for the update to take effect, you must restart the httpd daemon, if you are using mod_dav_svn, and the svnserve daemon, if you are serving Subversion repositories via the svn:// protocol.
    last seen 2019-02-21
    modified 2018-12-28
    plugin id 85867
    published 2015-09-09
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85867
    title Scientific Linux Security Update : subversion on SL7.x x86_64
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2015-1742.NASL
    description From Red Hat Security Advisory 2015:1742 : Updated subversion packages that fix multiple security issues are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. Subversion (SVN) is a concurrent version control system which enables one or more users to collaborate in developing and maintaining a hierarchy of files and directories while keeping a history of all changes. The mod_dav_svn module is used with the Apache HTTP Server to allow access to Subversion repositories via HTTP. An assertion failure flaw was found in the way the SVN server processed certain requests with dynamically evaluated revision numbers. A remote attacker could use this flaw to cause the SVN server (both svnserve and httpd with the mod_dav_svn module) to crash. (CVE-2015-0248) It was found that the mod_authz_svn module did not properly restrict anonymous access to Subversion repositories under certain configurations when used with Apache httpd 2.4.x. This could allow a user to anonymously access files in a Subversion repository, which should only be accessible to authenticated users. (CVE-2015-3184) It was found that the mod_dav_svn module did not properly validate the svn:author property of certain requests. An attacker able to create new revisions could use this flaw to spoof the svn:author property. (CVE-2015-0251) It was found that when an SVN server (both svnserve and httpd with the mod_dav_svn module) searched the history of a file or a directory, it would disclose its location in the repository if that file or directory was not readable (for example, if it had been moved). (CVE-2015-3187) Red Hat would like to thank the Apache Software Foundation for reporting these issues. Upstream acknowledges Evgeny Kotkov of VisualSVN as the original reporter of CVE-2015-0248 and CVE-2015-0251, and C. Michael Pilato of CollabNet as the original reporter of CVE-2015-3184 and CVE-2015-3187 flaws. All subversion users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, for the update to take effect, you must restart the httpd daemon, if you are using mod_dav_svn, and the svnserve daemon, if you are serving Subversion repositories via the svn:// protocol.
    last seen 2019-02-21
    modified 2018-07-18
    plugin id 85865
    published 2015-09-09
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85865
    title Oracle Linux 7 : subversion (ELSA-2015-1742)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2015-1742.NASL
    description Updated subversion packages that fix multiple security issues are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. Subversion (SVN) is a concurrent version control system which enables one or more users to collaborate in developing and maintaining a hierarchy of files and directories while keeping a history of all changes. The mod_dav_svn module is used with the Apache HTTP Server to allow access to Subversion repositories via HTTP. An assertion failure flaw was found in the way the SVN server processed certain requests with dynamically evaluated revision numbers. A remote attacker could use this flaw to cause the SVN server (both svnserve and httpd with the mod_dav_svn module) to crash. (CVE-2015-0248) It was found that the mod_authz_svn module did not properly restrict anonymous access to Subversion repositories under certain configurations when used with Apache httpd 2.4.x. This could allow a user to anonymously access files in a Subversion repository, which should only be accessible to authenticated users. (CVE-2015-3184) It was found that the mod_dav_svn module did not properly validate the svn:author property of certain requests. An attacker able to create new revisions could use this flaw to spoof the svn:author property. (CVE-2015-0251) It was found that when an SVN server (both svnserve and httpd with the mod_dav_svn module) searched the history of a file or a directory, it would disclose its location in the repository if that file or directory was not readable (for example, if it had been moved). (CVE-2015-3187) Red Hat would like to thank the Apache Software Foundation for reporting these issues. Upstream acknowledges Evgeny Kotkov of VisualSVN as the original reporter of CVE-2015-0248 and CVE-2015-0251, and C. Michael Pilato of CollabNet as the original reporter of CVE-2015-3184 and CVE-2015-3187 flaws. All subversion users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, for the update to take effect, you must restart the httpd daemon, if you are using mod_dav_svn, and the svnserve daemon, if you are serving Subversion repositories via the svn:// protocol.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 85978
    published 2015-09-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=85978
    title RHEL 7 : subversion (RHSA-2015:1742)
  • NASL family