Vulnerability-Lookup

GHSA-GXJV-3QX5-453X

Vulnerability from github – Published: 2022-05-24 17:39 – Updated: 2022-09-21 00:00

Details

A local privilege escalation vulnerability in telnetd.real of Juniper Networks Junos OS may allow a locally authenticated shell user to escalate privileges and execute arbitrary commands as root. telnetd.real is shipped with setuid permissions enabled and is owned by the root user, allowing local users to run telnetd.real with root privileges. This issue affects Juniper Networks Junos OS: all versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S12, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S6; 18.3 versions prior to 18.3R2-S4, 18.3R3-S4; 18.4 versions prior to 18.4R2-S7, 18.4R3-S6; 19.1 versions prior to 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S1; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R1-S4, 20.1R2; 20.2 versions prior to 20.2R2.

Severity ?

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2021-0223"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-01-15T18:15:00Z",
    "severity": "HIGH"
  },
  "details": "A local privilege escalation vulnerability in telnetd.real of Juniper Networks Junos OS may allow a locally authenticated shell user to escalate privileges and execute arbitrary commands as root. telnetd.real is shipped with setuid permissions enabled and is owned by the root user, allowing local users to run telnetd.real with root privileges. This issue affects Juniper Networks Junos OS: all versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S12, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S6; 18.3 versions prior to 18.3R2-S4, 18.3R3-S4; 18.4 versions prior to 18.4R2-S7, 18.4R3-S6; 19.1 versions prior to 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S1; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R1-S4, 20.1R2; 20.2 versions prior to 20.2R2.",
  "id": "GHSA-gxjv-3qx5-453x",
  "modified": "2022-09-21T00:00:40Z",
  "published": "2022-05-24T17:39:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-0223"
    },
    {
      "type": "WEB",
      "url": "https://kb.juniper.net/JSA11114"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-0223 (GCVE-0-2021-0223)

Vulnerability from cvelistv5 – Published: 2021-01-15 17:36 – Updated: 2024-09-17 00:46

Title

Junos OS: telnetd.real Local Privilege Escalation vulnerabilities in SUID binaries

Summary

Severity ?

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-250 - Execution with Unnecessary Privileges

Assigner

juniper

References

URL

Tags

https://kb.juniper.net/JSA11114

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	Juniper Networks	Junos OS	Affected: unspecified , < 15.1R7-S9 (custom) Affected: 17.3 , < 17.3R3-S11 (custom) Affected: 17.4 , < 17.4R2-S12, 17.4R3-S3 (custom) Affected: 18.1 , < 18.1R3-S11 (custom) Affected: 18.2 , < 18.2R3-S6 (custom) Affected: 18.3 , < 18.3R2-S4, 18.3R3-S4 (custom) Affected: 18.4 , < 18.4R2-S7, 18.4R3-S6 (custom) Affected: 19.1 , < 19.1R2-S2, 19.1R3-S4 (custom) Affected: 19.2 , < 19.2R1-S6, 19.2R3-S1 (custom) Affected: 19.3 , < 19.3R3-S1 (custom) Affected: 19.4 , < 19.4R2-S2, 19.4R3 (custom) Affected: 20.1 , < 20.1R1-S4, 20.1R2 (custom) Affected: 20.2 , < 20.2R2 (custom)

Credits

Juniper SIRT would like to acknowledge and thank Hoàng Thạch Nguyễn (d4rkn3ss) of STAR Labs for responsibly reporting this vulnerability.

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T15:32:10.292Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://kb.juniper.net/JSA11114"
          }
        ],
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      }
    ],
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          "vendor": "Juniper Networks",
          "versions": [
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              "status": "affected",
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              "lessThan": "17.3R3-S11",
              "status": "affected",
              "version": "17.3",
              "versionType": "custom"
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            {
              "lessThan": "17.4R2-S12, 17.4R3-S3",
              "status": "affected",
              "version": "17.4",
              "versionType": "custom"
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              "lessThan": "18.1R3-S11",
              "status": "affected",
              "version": "18.1",
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              "lessThan": "18.2R3-S6",
              "status": "affected",
              "version": "18.2",
              "versionType": "custom"
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            {
              "lessThan": "18.3R2-S4, 18.3R3-S4",
              "status": "affected",
              "version": "18.3",
              "versionType": "custom"
            },
            {
              "lessThan": "18.4R2-S7, 18.4R3-S6",
              "status": "affected",
              "version": "18.4",
              "versionType": "custom"
            },
            {
              "lessThan": "19.1R2-S2, 19.1R3-S4",
              "status": "affected",
              "version": "19.1",
              "versionType": "custom"
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              "status": "affected",
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              "versionType": "custom"
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              "status": "affected",
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              "status": "affected",
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        }
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          "lang": "en",
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        }
      ],
      "exploits": [
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          "lang": "en",
          "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
        }
      ],
      "metrics": [
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      },
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            "x_refsource_CONFIRM"
          ],
          "url": "https://kb.juniper.net/JSA11114"
        }
      ],
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        {
          "lang": "en",
          "value": "The following software releases have been updated to resolve this specific issue: Junos OS 15.1R7-S9*, 17.3R3-S11*, 17.4R2-S12, 17.4R3-S3, 18.1R3-S11, 18.2R3-S6, 18.3R2-S4, 18.3R3-S4, 18.4R2-S7, 18.4R3-S6, 19.1R2-S2, 19.1R3-S4, 19.2R1-S6, 19.2R3-S1, 19.3R3-S1, 19.4R2-S2, 19.4R3, 20.1R1-S4, 20.1R2, 20.2R2, 20.3R1, and all subsequent releases.\n\n*Late availability"
        }
      ],
      "source": {
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        "defect": [
          "1525318"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Junos OS: telnetd.real Local Privilege Escalation vulnerabilities in SUID binaries",
      "workarounds": [
        {
          "lang": "en",
          "value": "Use access lists or firewall filters to limit CLI access to the device only from trusted, administrative networks or hosts.\n\nLimit access to the Junos OS shell to only trusted system administrators."
        }
      ],
      "x_generator": {
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      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "sirt@juniper.net",
          "DATE_PUBLIC": "2021-01-13T17:00:00.000Z",
          "ID": "CVE-2021-0223",
          "STATE": "PUBLIC",
          "TITLE": "Junos OS: telnetd.real Local Privilege Escalation vulnerabilities in SUID binaries"
        },
        "affects": {
          "vendor": {
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                      "version": {
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          }
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        "exploit": [
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            "attackVector": "LOCAL",
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          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
    "assignerShortName": "juniper",
    "cveId": "CVE-2021-0223",
    "datePublished": "2021-01-15T17:36:03.281858Z",
    "dateReserved": "2020-10-27T00:00:00",
    "dateUpdated": "2024-09-17T00:46:49.158Z",
    "state": "PUBLISHED"
  },
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-GXJV-3QX5-453X

CVE-2021-0223 (GCVE-0-2021-0223)

Tags

Sightings

Nomenclature