rhsa-2013_0265
Vulnerability from csaf_redhat
Published
2013-02-19 20:29
Modified
2024-11-22 06:40
Summary
Red Hat Security Advisory: tomcat6 security update

Notes

Topic
An update for the Apache Tomcat 6 component for JBoss Enterprise Web Server 2.0.0 that fixes multiple security issues is now available from the Red Hat Customer Portal. The Red Hat Security Response Team 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.
Details
Apache Tomcat is a servlet container. It was found that sending a request without a session identifier to a protected resource could bypass the Cross-Site Request Forgery (CSRF) prevention filter. A remote attacker could use this flaw to perform CSRF attacks against applications that rely on the CSRF prevention filter and do not contain internal mitigation for CSRF. (CVE-2012-4431) A flaw was found in the way Tomcat handled sendfile operations when using the HTTP NIO (Non-Blocking I/O) connector and HTTPS. A remote attacker could use this flaw to cause a denial of service (infinite loop). The HTTP NIO connector is used by default in JBoss Enterprise Web Server. The Apache Portable Runtime (APR) connector from the Tomcat Native library was not affected by this flaw. (CVE-2012-4534) Multiple weaknesses were found in the Tomcat DIGEST authentication implementation, effectively reducing the security normally provided by DIGEST authentication. A remote attacker could use these flaws to perform replay attacks in some circumstances. (CVE-2012-5885, CVE-2012-5886, CVE-2012-5887) A denial of service flaw was found in the way the Tomcat HTTP NIO connector enforced limits on the permitted size of request headers. A remote attacker could use this flaw to trigger an OutOfMemoryError by sending a specially-crafted request with very large headers. The HTTP NIO connector is used by default in JBoss Enterprise Web Server. The APR connector from the Tomcat Native library was not affected by this flaw. (CVE-2012-2733) Warning: Before applying the update, back up your existing JBoss Enterprise Web Server installation (including all applications and configuration files). All users of JBoss Enterprise Web Server 2.0.0 as provided from the Red Hat Customer Portal are advised to apply this update.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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        "text": "An update for the Apache Tomcat 6 component for JBoss Enterprise Web Server\n2.0.0 that fixes multiple security issues is now available from the Red Hat\nCustomer Portal.\n\nThe Red Hat Security Response Team has rated this update as having moderate\nsecurity impact. Common Vulnerability Scoring System (CVSS) base scores,\nwhich give detailed severity ratings, are available for each vulnerability\nfrom the CVE links in the References section.",
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        "text": "Apache Tomcat is a servlet container.\n\nIt was found that sending a request without a session identifier to a\nprotected resource could bypass the Cross-Site Request Forgery (CSRF)\nprevention filter. A remote attacker could use this flaw to perform\nCSRF attacks against applications that rely on the CSRF prevention filter\nand do not contain internal mitigation for CSRF. (CVE-2012-4431)\n\nA flaw was found in the way Tomcat handled sendfile operations when using\nthe HTTP NIO (Non-Blocking I/O) connector and HTTPS. A remote attacker\ncould use this flaw to cause a denial of service (infinite loop). The HTTP\nNIO connector is used by default in JBoss Enterprise Web Server. The Apache\nPortable Runtime (APR) connector from the Tomcat Native library was not\naffected by this flaw. (CVE-2012-4534)\n\nMultiple weaknesses were found in the Tomcat DIGEST authentication\nimplementation, effectively reducing the security normally provided by\nDIGEST authentication. A remote attacker could use these flaws to perform\nreplay attacks in some circumstances. (CVE-2012-5885, CVE-2012-5886,\nCVE-2012-5887)\n\nA denial of service flaw was found in the way the Tomcat HTTP NIO connector\nenforced limits on the permitted size of request headers. A remote attacker\ncould use this flaw to trigger an OutOfMemoryError by sending a\nspecially-crafted request with very large headers. The HTTP NIO connector\nis used by default in JBoss Enterprise Web Server. The APR connector from\nthe Tomcat Native library was not affected by this flaw. (CVE-2012-2733)\n\nWarning: Before applying the update, back up your existing JBoss Enterprise\nWeb Server installation (including all applications and configuration\nfiles).\n\nAll users of JBoss Enterprise Web Server 2.0.0 as provided from the Red Hat\nCustomer Portal are advised to apply this update.",
        "title": "Details"
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          "text": "873695"
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          "category": "description",
          "text": "java/org/apache/coyote/http11/InternalNioInputBuffer.java in the HTTP NIO connector in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.28 does not properly restrict the request-header size, which allows remote attackers to cause a denial of service (memory consumption) via a large amount of header data.",
          "title": "Vulnerability description"
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        {
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          "text": "tomcat: HTTP NIO connector OOM DoS via a request with large headers",
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          "date": "2013-02-19T20:29:00+00:00",
          "details": "The References section of this erratum contains a download link (you must\nlog in to download the update). Before applying the update, back up your\nexisting JBoss Enterprise Web Server installation (including all\napplications and configuration files).\n\nTomcat must be restarted for this update to take effect.",
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        }
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            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
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          "products": [
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        }
      ],
      "threats": [
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          "category": "impact",
          "details": "Moderate"
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      ],
      "title": "tomcat: HTTP NIO connector OOM DoS via a request with large headers"
    },
    {
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      "cwe": {
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        "name": "Cross-Site Request Forgery (CSRF)"
      },
      "discovery_date": "2012-12-05T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "883636"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "org/apache/catalina/filters/CsrfPreventionFilter.java in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.32 allows remote attackers to bypass the cross-site request forgery (CSRF) protection mechanism via a request that lacks a session identifier.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Tomcat/JBoss Web - Bypass of CSRF prevention filter",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue did not affect the versions of tomcat5 as shipped with Red Hat Enterprise Linux 5 and tomcat6 as shipped with Red Hat Enterprise Linux 6 as they did not include the CSRF prevention filter.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2012-4431"
        },
        {
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          "summary": "RHBZ#883636",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=883636"
        },
        {
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        {
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2012-4431",
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        },
        {
          "category": "external",
          "summary": "http://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.36",
          "url": "http://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.36"
        },
        {
          "category": "external",
          "summary": "http://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.32",
          "url": "http://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.32"
        }
      ],
      "release_date": "2012-12-04T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2013-02-19T20:29:00+00:00",
          "details": "The References section of this erratum contains a download link (you must\nlog in to download the update). Before applying the update, back up your\nexisting JBoss Enterprise Web Server installation (including all\napplications and configuration files).\n\nTomcat must be restarted for this update to take effect.",
          "product_ids": [
            "Red Hat JBoss Web Server 2.0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2013:0265"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "products": [
            "Red Hat JBoss Web Server 2.0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Tomcat/JBoss Web - Bypass of CSRF prevention filter"
    },
    {
      "cve": "CVE-2012-4534",
      "discovery_date": "2012-12-05T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "883637"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "org/apache/tomcat/util/net/NioEndpoint.java in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.28, when the NIO connector is used in conjunction with sendfile and HTTPS, allows remote attackers to cause a denial of service (infinite loop) by terminating the connection during the reading of a response.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Tomcat - Denial Of Service when using NIO+SSL+sendfile",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2012-4534"
        },
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          "category": "external",
          "summary": "RHBZ#883637",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=883637"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2012-4534",
          "url": "https://www.cve.org/CVERecord?id=CVE-2012-4534"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2012-4534",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-4534"
        }
      ],
      "release_date": "2012-12-04T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2013-02-19T20:29:00+00:00",
          "details": "The References section of this erratum contains a download link (you must\nlog in to download the update). Before applying the update, back up your\nexisting JBoss Enterprise Web Server installation (including all\napplications and configuration files).\n\nTomcat must be restarted for this update to take effect.",
          "product_ids": [
            "Red Hat JBoss Web Server 2.0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2013:0265"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "products": [
            "Red Hat JBoss Web Server 2.0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Tomcat - Denial Of Service when using NIO+SSL+sendfile"
    },
    {
      "cve": "CVE-2012-5885",
      "discovery_date": "2012-11-05T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "873664"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "The replay-countermeasure functionality in the HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.36, 6.x before 6.0.36, and 7.x before 7.0.30 tracks cnonce (aka client nonce) values instead of nonce (aka server nonce) and nc (aka nonce-count) values, which makes it easier for remote attackers to bypass intended access restrictions by sniffing the network for valid requests, a different vulnerability than CVE-2011-1184.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat: three DIGEST authentication implementation issues",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat JBoss Web Server 2.0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2012-5885"
        },
        {
          "category": "external",
          "summary": "RHBZ#873664",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=873664"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2012-5885",
          "url": "https://www.cve.org/CVERecord?id=CVE-2012-5885"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2012-5885",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-5885"
        }
      ],
      "release_date": "2012-11-05T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2013-02-19T20:29:00+00:00",
          "details": "The References section of this erratum contains a download link (you must\nlog in to download the update). Before applying the update, back up your\nexisting JBoss Enterprise Web Server installation (including all\napplications and configuration files).\n\nTomcat must be restarted for this update to take effect.",
          "product_ids": [
            "Red Hat JBoss Web Server 2.0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2013:0265"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "products": [
            "Red Hat JBoss Web Server 2.0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "tomcat: three DIGEST authentication implementation issues"
    },
    {
      "cve": "CVE-2012-5886",
      "discovery_date": "2012-11-05T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "873664"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "The HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.36, 6.x before 6.0.36, and 7.x before 7.0.30 caches information about the authenticated user within the session state, which makes it easier for remote attackers to bypass authentication via vectors related to the session ID.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat: three DIGEST authentication implementation issues",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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      "product_status": {
        "fixed": [
          "Red Hat JBoss Web Server 2.0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2012-5886"
        },
        {
          "category": "external",
          "summary": "RHBZ#873664",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=873664"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2012-5886",
          "url": "https://www.cve.org/CVERecord?id=CVE-2012-5886"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2012-5886",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-5886"
        }
      ],
      "release_date": "2012-11-05T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2013-02-19T20:29:00+00:00",
          "details": "The References section of this erratum contains a download link (you must\nlog in to download the update). Before applying the update, back up your\nexisting JBoss Enterprise Web Server installation (including all\napplications and configuration files).\n\nTomcat must be restarted for this update to take effect.",
          "product_ids": [
            "Red Hat JBoss Web Server 2.0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2013:0265"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "products": [
            "Red Hat JBoss Web Server 2.0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "tomcat: three DIGEST authentication implementation issues"
    },
    {
      "cve": "CVE-2012-5887",
      "discovery_date": "2012-11-05T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "873664"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "The HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.36, 6.x before 6.0.36, and 7.x before 7.0.30 does not properly check for stale nonce values in conjunction with enforcement of proper credentials, which makes it easier for remote attackers to bypass intended access restrictions by sniffing the network for valid requests.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "tomcat: three DIGEST authentication implementation issues",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat JBoss Web Server 2.0"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2012-5887"
        },
        {
          "category": "external",
          "summary": "RHBZ#873664",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=873664"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2012-5887",
          "url": "https://www.cve.org/CVERecord?id=CVE-2012-5887"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2012-5887",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-5887"
        }
      ],
      "release_date": "2012-11-05T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2013-02-19T20:29:00+00:00",
          "details": "The References section of this erratum contains a download link (you must\nlog in to download the update). Before applying the update, back up your\nexisting JBoss Enterprise Web Server installation (including all\napplications and configuration files).\n\nTomcat must be restarted for this update to take effect.",
          "product_ids": [
            "Red Hat JBoss Web Server 2.0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2013:0265"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "products": [
            "Red Hat JBoss Web Server 2.0"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "tomcat: three DIGEST authentication implementation issues"
    }
  ]
}


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