Explain CVE-2010-0926
The default configuration of smbd in Samba before 3.3.11, 3.4.x before 3.4.6, and 3.5.x before 3.5.0rc3, when a writable share exists, allows remote authenticated users to leverage a directory traversal vulnerability, and access arbitrary files, by using the symlink command in smbclient to create a symlink containing .. (dot dot) sequences, related to the combination of the unix extensions and wide links options.
Affected Products: n/a
References: [{'name': '[samba-technical] 20100207 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126555346721629&w=2'}, {'name': '39317', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/39317'}, {'name': '[oss-security] 20100206 Re: Samba symlink 0day flaw', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2010/02/06/3'}, {'name': '[samba-technical] 20100206 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126549111204428&w=2'}, {'name': '[samba-technical] 20100205 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126540376915283&w=2'}, {'name': '[samba-technical] 20100205 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126540539117328&w=2'}, {'name': '[oss-security] 20100305 Re: Samba symlink 0day flaw', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2010/03/05/3'}, {'tags': ['x_refsource_MISC'], 'url': 'http://blog.metasploit.com/2010/02/exploiting-samba-symlink-traversal.html'}, {'name': '[samba-technical] 20100205 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126540477016522&w=2'}, {'name': '20100204 Re: Samba Remote Zero-Day Exploit', 'tags': ['mailing-list', 'x_refsource_FULLDISC'], 'url': 'http://archives.neohapsis.com/archives/fulldisclosure/2010-02/0107.html'}, {'name': '[samba-technical] 20100205 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126540248613395&w=2'}, {'name': '[samba-technical] 20100205 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126540290614053&w=2'}, {'name': '20100205 Re: Samba Remote Zero-Day Exploit', 'tags': ['mailing-list', 'x_refsource_FULLDISC'], 'url': 'http://marc.info/?l=full-disclosure&m=126538598820903&w=2'}, {'name': '[samba-technical] 20100206 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126548356728379&w=2'}, {'name': '[oss-security] 20100206 Re: Samba symlink 0day flaw', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=oss-security&m=126545363428745&w=2'}, {'name': '[samba-technical] 20100205 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126540475116511&w=2'}, {'name': '[samba-technical] 20100205 Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126539387432412&w=2'}, {'name': '[samba-technical] 20100205 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126540695819735&w=2'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://gitweb.samba.org/?p=samba.git%3Ba=commit%3Bh=bd269443e311d96ef495a9db47d1b95eb83bb8f4'}, {'name': '[oss-security] 20100305 Re: Samba symlink 0day flaw', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=oss-security&m=126777580624790&w=2'}, {'name': '20100204 Samba Remote Zero-Day Exploit', 'tags': ['mailing-list', 'x_refsource_FULLDISC'], 'url': 'http://archives.neohapsis.com/archives/fulldisclosure/2010-02/0083.html'}, {'name': 'SUSE-SR:2010:008', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2010-04/msg00001.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://www.samba.org/samba/news/symlink_attack.html'}, {'name': 'SUSE-SR:2010:014', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html'}, {'name': '[samba-technical] 20100206 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126547903723628&w=2'}, {'name': '[samba-technical] 20100205 re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126540011609753&w=2'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://bugzilla.samba.org/show_bug.cgi?id=7104'}, {'name': '[oss-security] 20100205 Samba symlink 0day flaw', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=oss-security&m=126539592603079&w=2'}, {'name': '[oss-security] 20100205 Re: Samba symlink 0day flaw', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=oss-security&m=126540733320471&w=2'}, {'name': '20100204 Re: Samba Remote Zero-Day Exploit', 'tags': ['mailing-list', 'x_refsource_FULLDISC'], 'url': 'http://archives.neohapsis.com/archives/fulldisclosure/2010-02/0108.html'}, {'name': '[samba-technical] 20100205 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126540608318301&w=2'}, {'name': '[samba-technical] 20100205 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126540100511357&w=2'}, {'name': '[samba-technical] 20100205 Re: Claimed Zero Day exploit in Samba.', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=samba-technical&m=126540277713815&w=2'}, {'name': '[oss-security] 20100205 Re: Samba symlink 0day flaw', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=oss-security&m=126540402215620&w=2'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=562568'}]
CVE State: PUBLISHED