Vulnerabilities > CVE-2004-0749 - Information Disclosure vulnerability in Subversion Mod_Authz_Svn Metadata

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
NONE
Availability impact
NONE
network
low complexity
subversion
gentoo
nessus

Summary

The mod_authz_svn module in Subversion 1.0.7 and earlier does not properly restrict access to all metadata on unreadable paths, which could allow remote attackers to gain sensitive information via (1) svn log -v, (2) svn propget, or (3) svn blame, and other commands that follow renames.

Nessus

  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-200409-35.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-200409-35 (Subversion: Metadata information leak) There is a bug in mod_authz_svn that causes it to reveal logged metadata regarding commits to protected areas. Impact : Protected files themselves will not be revealed, but an attacker could use the metadata to reveal the existence of protected areas, such as paths, file versions, and the commit logs from those areas. Workaround : Rather than using mod_authz_svn, move protected areas into separate repositories and use native Apache authentication to make these repositories unreadable.
    last seen2020-06-01
    modified2020-06-02
    plugin id15406
    published2004-10-01
    reporterThis script is Copyright (C) 2004-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/15406
    titleGLSA-200409-35 : Subversion: Metadata information leak
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Gentoo Linux Security Advisory GLSA 200409-35.
    #
    # The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
    # and licensed under the Creative Commons - Attribution / Share Alike 
    # license. See http://creativecommons.org/licenses/by-sa/3.0/
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(15406);
      script_version("1.17");
      script_cvs_date("Date: 2019/08/02 13:32:41");
    
      script_cve_id("CVE-2004-0749");
      script_xref(name:"GLSA", value:"200409-35");
    
      script_name(english:"GLSA-200409-35 : Subversion: Metadata information leak");
      script_summary(english:"Checks for updated package(s) in /var/db/pkg");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:
    "The remote Gentoo host is missing one or more security-related
    patches."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "The remote host is affected by the vulnerability described in GLSA-200409-35
    (Subversion: Metadata information leak)
    
        There is a bug in mod_authz_svn that causes it to reveal logged metadata
        regarding commits to protected areas.
      
    Impact :
    
        Protected files themselves will not be revealed, but an attacker could use
        the metadata to reveal the existence of protected areas, such as paths,
        file versions, and the commit logs from those areas.
      
    Workaround :
    
        Rather than using mod_authz_svn, move protected areas into separate
        repositories and use native Apache authentication to make these
        repositories unreadable."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"http://subversion.tigris.org/security/CAN-2004-0749-advisory.txt"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security.gentoo.org/glsa/200409-35"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "All Subversion users should upgrade to the latest version:
        # emerge sync
        # emerge -pv '>=dev-util/subversion-1.0.8'
        # emerge '>=dev-util/subversion-1.0.8'"
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:subversion");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2004/09/29");
      script_set_attribute(attribute:"plugin_publication_date", value:"2004/10/01");
      script_set_attribute(attribute:"vuln_publication_date", value:"2004/09/23");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2004-2019 Tenable Network Security, Inc.");
      script_family(english:"Gentoo Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("qpkg.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
    if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    
    if (qpkg_check(package:"dev-util/subversion", unaffected:make_list("ge 1.0.8"), vulnerable:make_list("lt 1.0.8"))) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_warning(port:0, extra:qpkg_report_get());
      else security_warning(0);
      exit(0);
    }
    else
    {
      tested = qpkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Subversion");
    }
    
  • NASL familyMisc.
    NASL idSUBVERSION_1_0_8.NASL
    descriptionYou are running a version of Subversion which is older than 1.0.8 or 1.1.0-rc4. A flaw exists in older version, in the apache module mod_authz_svn, which fails to properly restrict access to metadata within unreadable paths. An attacker can read metadata in unreadable paths, which can contain sensitive information such as logs and paths.
    last seen2020-06-01
    modified2020-06-02
    plugin id14800
    published2004-09-23
    reporterThis script is Copyright (C) 2004-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/14800
    titleSubversion < 1.0.8 / 1.1.0-rc4 mod_authz_svn Unreadable Path Metadata Information Disclosure
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_SUBVERSION_108.NASL
    descriptionThe following package needs to be updated: subversion-perl
    last seen2016-09-26
    modified2004-09-28
    plugin id14844
    published2004-09-28
    reporterTenable
    sourcehttps://www.tenable.com/plugins/index.php?view=single&id=14844
    titleFreeBSD : subversion -- WebDAV fails to protect metadata (188)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2004-318.NASL
    descriptionThis update includes the latest stable release of Subversion, including a security fix for information disclosure bugs in handling of metadata (such as log messages) in repositories using mod_authz_svn for path-based access-control (CVE-2004-0749). 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 seen2020-06-01
    modified2020-06-02
    plugin id14808
    published2004-09-24
    reporterThis script is Copyright (C) 2004-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/14808
    titleFedora Core 2 : subversion-1.0.8-1 (2004-318)
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_184F5D0B0FE811D98A8A000C41E2CDAD.NASL
    descriptionIn some situations, subversion metadata may be unexpectedly disclosed via WebDAV. A subversion advisory states : mod_authz_svn, the Apache httpd module which does path-based authorization on Subversion repositories, is not correctly protecting all metadata on unreadable paths. This security issue is not about revealing the contents of protected files: it only reveals metadata about protected areas such as paths and log messages. This may or may not be important to your organization, depending on how you
    last seen2020-06-01
    modified2020-06-02
    plugin id37142
    published2009-04-23
    reporterThis script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/37142
    titleFreeBSD : subversion -- WebDAV fails to protect metadata (184f5d0b-0fe8-11d9-8a8a-000c41e2cdad)