Explain CVE-2007-1558
The APOP protocol allows remote attackers to guess the first 3 characters of a password via man-in-the-middle (MITM) attacks that use crafted message IDs and MD5 collisions.  NOTE: this design-level issue potentially affects all products that use APOP, including (1) Thunderbird 1.x before 1.5.0.12 and 2.x before 2.0.0.4, (2) Evolution, (3) mutt, (4) fetchmail before 6.3.8, (5) SeaMonkey 1.0.x before 1.0.9 and 1.1.x before 1.1.2, (6) Balsa 2.3.16 and earlier, (7) Mailfilter before 0.8.2, and possibly other products.
Affected Products: n/a
References: [{'name': '25496', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25496'}, {'name': '25529', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25529'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://sourceforge.net/forum/forum.php?forum_id=683706'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://docs.info.apple.com/article.html?artnum=305530'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://www.claws-mail.org/news.php'}, {'name': 'MDKSA-2007:107', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDKSA-2007:107'}, {'name': '2007-0024', 'tags': ['vendor-advisory', 'x_refsource_TRUSTIX'], 'url': 'http://www.trustix.org/errata/2007/0024/'}, {'name': '20070403 Re: APOP vulnerability', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/464569/100/0/threaded'}, {'name': '25894', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25894'}, {'name': '20070615 rPSA-2007-0122-1 evolution-data-server', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/471455/100/0/threaded'}, {'name': 'ADV-2007-1939', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2007/1939'}, {'name': '26083', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/26083'}, {'name': 'ADV-2007-1468', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2007/1468'}, {'name': 'RHSA-2009:1140', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2009-1140.html'}, {'name': 'HPSBUX02156', 'tags': ['vendor-advisory', 'x_refsource_HP'], 'url': 'http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00774579'}, {'name': '20070531 FLEA-2007-0023-1: firefox', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/470172/100/200/threaded'}, {'name': '26415', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/26415'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://fetchmail.berlios.de/fetchmail-SA-2007-01.txt'}, {'name': '[oss-security] 20090818 Re: CVE-2007-1558 update (was: mailfilter 0.8.2 fixes CVE-2007-1558 (APOP))', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2009/08/18/1'}, {'name': 'APPLE-SA-2007-05-24', 'tags': ['vendor-advisory', 'x_refsource_APPLE'], 'url': 'http://lists.apple.com/archives/security-announce/2007/May/msg00004.html'}, {'name': 'SUSE-SR:2007:014', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://www.novell.com/linux/security/advisories/2007_14_sr.html'}, {'name': '25402', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25402'}, {'name': 'HPSBUX02153', 'tags': ['vendor-advisory', 'x_refsource_HP'], 'url': 'http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00771742'}, {'name': '20070402 APOP vulnerability', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/464477/30/0/threaded'}, {'name': 'SUSE-SA:2007:036', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://www.novell.com/linux/security/advisories/2007_36_mozilla.html'}, {'name': 'GLSA-200706-06', 'tags': ['vendor-advisory', 'x_refsource_GENTOO'], 'url': 'http://security.gentoo.org/glsa/glsa-200706-06.xml'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://sylpheed.sraoss.jp/en/news.html'}, {'name': '25534', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25534'}, {'name': 'ADV-2007-1994', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2007/1994'}, {'name': 'SSA:2007-152-02', 'tags': ['vendor-advisory', 'x_refsource_SLACKWARE'], 'url': 'http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.571857'}, {'name': '23257', 'tags': ['vdb-entry', 'x_refsource_BID'], 'url': 'http://www.securityfocus.com/bid/23257'}, {'name': 'USN-469-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/usn-469-1'}, {'name': 'MDKSA-2007:131', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDKSA-2007:131'}, {'name': 'DSA-1305', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2007/dsa-1305'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://issues.rpath.com/browse/RPL-1231'}, {'name': 'ADV-2007-1467', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2007/1467'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://www.mozilla.org/security/announce/2007/mfsa2007-15.html'}, {'name': 'ADV-2007-2788', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2007/2788'}, {'name': 'SSRT061236', 'tags': ['vendor-advisory', 'x_refsource_HP'], 'url': 'http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00774579'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://issues.rpath.com/browse/RPL-1424'}, {'name': '25664', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25664'}, {'name': 'MDKSA-2007:119', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDKSA-2007:119'}, {'name': '25546', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25546'}, {'name': 'RHSA-2007:0353', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2007-0353.html'}, {'name': 'RHSA-2007:0385', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2007-0385.html'}, {'name': '25858', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25858'}, {'name': '25798', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25798'}, {'name': '25353', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25353'}, {'name': 'ADV-2008-0082', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2008/0082'}, {'name': '[oss-security] 20090815 mailfilter 0.8.2 fixes CVE-2007-1558 (APOP)', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2009/08/15/1'}, {'name': 'RHSA-2007:0401', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2007-0401.html'}, {'name': '2007-0019', 'tags': ['vendor-advisory', 'x_refsource_TRUSTIX'], 'url': 'http://www.trustix.org/errata/2007/0019/'}, {'name': '25476', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25476'}, {'name': '35699', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/35699'}, {'name': 'MDKSA-2007:113', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDKSA-2007:113'}, {'name': '[balsa-list] 20070704 balsa-2.3.17 released', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://mail.gnome.org/archives/balsa-list/2007-July/msg00000.html'}, {'name': 'SSRT061181', 'tags': ['vendor-advisory', 'x_refsource_HP'], 'url': 'http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00771742'}, {'name': 'MDKSA-2007:105', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDKSA-2007:105'}, {'name': 'RHSA-2007:0386', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2007-0386.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://issues.rpath.com/browse/RPL-1232'}, {'name': '25750', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25750'}, {'name': '20070619 FLEA-2007-0026-1: evolution-data-server', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/471720/100/0/threaded'}, {'name': 'DSA-1300', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2007/dsa-1300'}, {'name': '25559', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25559'}, {'name': 'ADV-2007-1466', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2007/1466'}, {'name': '1018008', 'tags': ['vdb-entry', 'x_refsource_SECTRACK'], 'url': 'http://www.securitytracker.com/id?1018008'}, {'name': 'oval:org.mitre.oval:def:9782', 'tags': ['vdb-entry', 'signature', 'x_refsource_OVAL'], 'url': 'https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9782'}, {'name': '20070602-01-P', 'tags': ['vendor-advisory', 'x_refsource_SGI'], 'url': 'ftp://patches.sgi.com/support/free/security/advisories/20070602-01-P.asc'}, {'name': 'RHSA-2007:0402', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2007-0402.html'}, {'name': 'ADV-2007-1480', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2007/1480'}, {'name': 'USN-520-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/usn-520-1'}, {'name': 'TA07-151A', 'tags': ['third-party-advisory', 'x_refsource_CERT'], 'url': 'http://www.us-cert.gov/cas/techalerts/TA07-151A.html'}, {'name': 'RHSA-2007:0344', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2007-0344.html'}, {'name': '20070620 FLEA-2007-0027-1: thunderbird', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/471842/100/0/threaded'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://balsa.gnome.org/download.html'}]
CVE State: PUBLISHED