RHSA-2014:0266
Vulnerability from csaf_redhat
Published
2014-03-10 15:46
Modified
2024-11-22 07:37
Summary
Red Hat Security Advisory: sudo security update

Notes

Topic
An updated sudo package that fixes one security issue is now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
Details
The sudo (superuser do) utility allows system administrators to give certain users the ability to run commands as root. A flaw was found in the way sudo handled its blacklist of environment variables. When the "env_reset" option was disabled, a user permitted to run certain commands via sudo could use this flaw to run such a command with one of the blacklisted environment variables set, allowing them to run an arbitrary command with the target user's privileges. (CVE-2014-0106) Note: This issue does not affect the default configuration of the sudo package as shipped with Red Hat Enterprise Linux 5. Red Hat would like to thank Todd C. Miller for reporting this issue. Upstream acknowledges Sebastien Macke as the original reporter. All sudo users are advised to upgrade to this updated package, which contains a backported patch to correct this issue.
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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        },
        "product_reference": "sudo-debuginfo-0:1.7.2p1-29.el5_10.x86_64",
        "relates_to_product_reference": "5Server-5.10.Z"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Todd C. Miller"
          ]
        },
        {
          "names": [
            "Sebastien Macke"
          ],
          "summary": "Acknowledged by upstream."
        }
      ],
      "cve": "CVE-2014-0106",
      "discovery_date": "2014-03-01T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1071780"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Sudo 1.6.9 before 1.8.5, when env_reset is disabled, does not properly check environment variables for the env_delete restriction, which allows local users with sudo permissions to bypass intended command restrictions via a crafted environment variable.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "sudo: certain environment variables not sanitized when env_reset is disabled",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue did not affect the version of sudo package as shipped with Red Hat Enterprise Linux 6.",
          "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"
        }
      ],
      "product_status": {
        "fixed": [
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2014-0106"
        },
        {
          "category": "external",
          "summary": "RHBZ#1071780",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1071780"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2014-0106",
          "url": "https://www.cve.org/CVERecord?id=CVE-2014-0106"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2014-0106",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-0106"
        },
        {
          "category": "external",
          "summary": "http://www.sudo.ws/sudo/alerts/env_add.html",
          "url": "http://www.sudo.ws/sudo/alerts/env_add.html"
        }
      ],
      "release_date": "2014-03-06T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2014-03-10T15:46:22+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. Details on how to\nuse the Red Hat Network to apply this update are available at\nhttps://access.redhat.com/site/articles/11258",
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          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2014:0266"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "SINGLE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.6,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:M/Au:S/C:C/I:C/A:C",
            "version": "2.0"
          },
          "products": [
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "sudo: certain environment variables not sanitized when env_reset is disabled"
    }
  ]
}


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