{
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        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2010-4021",
        "STATE": "PUBLIC"
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    "affects": {
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    "description": {
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                "lang": "eng",
                "value": "The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 does not properly restrict the use of TGT credentials for armoring TGS requests, which might allow remote authenticated users to impersonate a client by rewriting an inner request, aka a \"KrbFastReq forgery issue.\""
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        "reference_data": [
            {
                "name": "ADV-2010-3094",
                "refsource": "VUPEN",
                "url": "http://www.vupen.com/english/advisories/2010/3094"
            },
            {
                "name": "MDVSA-2010:246",
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                "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2010:246"
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                "name": "http://kb.vmware.com/kb/1035108",
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                "name": "ADV-2010-3118",
                "refsource": "VUPEN",
                "url": "http://www.vupen.com/english/advisories/2010/3118"
            },
            {
                "name": "20101130 MITKRB5-SA-2010-007 Multiple checksum handling vulnerabilities [CVE-2010-1324 CVE-2010-1323 CVE-2010-4020 CVE-2010-4021]",
                "refsource": "BUGTRAQ",
                "url": "http://www.securityfocus.com/archive/1/514953/100/0/threaded"
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                "url": "http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html"
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                "name": "69607",
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                "url": "http://osvdb.org/69607"
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                "name": "http://www.vmware.com/security/advisories/VMSA-2011-0007.html",
                "refsource": "CONFIRM",
                "url": "http://www.vmware.com/security/advisories/VMSA-2011-0007.html"
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            {
                "name": "APPLE-SA-2011-03-21-1",
                "refsource": "APPLE",
                "url": "http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html"
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            {
                "name": "http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt",
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                "name": "45122",
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                "name": "[security-announce] 20110428 VMSA-2011-0007 VMware ESXi and ESX Denial of Service and third party updates for Likewise components and ESX Service Console",
                "refsource": "MLIST",
                "url": "http://lists.vmware.com/pipermail/security-announce/2011/000133.html"
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            {
                "name": "1024803",
                "refsource": "SECTRACK",
                "url": "http://www.securitytracker.com/id?1024803"
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                "name": "20110428 VMSA-2011-0007 VMware ESXi and ESX Denial of Service and third party updates for Likewise components and ESX Service Console",
                "refsource": "BUGTRAQ",
                "url": "http://www.securityfocus.com/archive/1/517739/100/0/threaded"
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                "name": "SUSE-SR:2010:024",
                "refsource": "SUSE",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html"
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            {
                "name": "USN-1030-1",
                "refsource": "UBUNTU",
                "url": "http://www.ubuntu.com/usn/USN-1030-1"
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            {
                "name": "http://support.apple.com/kb/HT4581",
                "refsource": "CONFIRM",
                "url": "http://support.apple.com/kb/HT4581"
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