Vulnerability-Lookup

ubuntu-cve-2020-11728

Vulnerability from osv_ubuntu

Published

2020-04-15 16:15

Modified

2025-10-24 04:48

Summary

Details

An issue was discovered in DAViCal Andrew's Web Libraries (AWL) through 0.60. Session management does not use a sufficiently hard-to-guess session key. Anyone who can guess the microsecond time (and the incrementing session_id) can impersonate a session.

Severity

7.5 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2020-11728	REPORT
	https://gitlab.com/davical-project/awl/-/issues/19	REPORT
	https://gitlab.com/davical-project/awl/-/commit/c…	REPORT
	https://ubuntu.com/security/notices/USN-4539-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2020-11728	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libawl-php",
            "binary_version": "0.56-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "awl",
        "purl": "pkg:deb/ubuntu/awl@0.56-1ubuntu1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.55-1",
        "0.56-1",
        "0.56-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libawl-php",
            "binary_version": "0.59-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "awl",
        "purl": "pkg:deb/ubuntu/awl@0.59-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.57-1",
        "0.58-1",
        "0.59-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libawl-php",
            "binary_version": "0.60-1+deb10u1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "awl",
        "purl": "pkg:deb/ubuntu/awl@0.60-1+deb10u1ubuntu1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.60-1+deb10u1ubuntu1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.60-1"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in DAViCal Andrew\u0027s Web Libraries (AWL) through 0.60. Session management does not use a sufficiently hard-to-guess session key. Anyone who can guess the microsecond time (and the incrementing session_id) can impersonate a session.",
  "id": "UBUNTU-CVE-2020-11728",
  "modified": "2025-10-24T04:48:25Z",
  "published": "2020-04-15T16:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-11728"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.com/davical-project/awl/-/issues/19"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.com/davical-project/awl/-/commit/c2e808cc2420f8d870ac0a4aa9cc1f2c90562428"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4539-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-11728"
    }
  ],
  "related": [
    "USN-4539-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-11728"
  ]
}

CVE-2020-11728 (GCVE-0-2020-11728)

Vulnerability from cvelistv5 – Published: 2020-04-15 15:37 – Updated: 2024-08-04 11:41

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

5 references

URL	Tags
https://gitlab.com/davical-project/awl/-/issues/19	x_refsource_MISC
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2020/dsa-4660	vendor-advisoryx_refsource_DEBIAN
https://usn.ubuntu.com/4539-1/	vendor-advisoryx_refsource_UBUNTU

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T11:41:59.965Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://gitlab.com/davical-project/awl/-/issues/19"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=956650"
          },
          {
            "name": "[debian-lts-announce] 20200417 [SECURITY] [DLA 2178-1] awl security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2020/04/msg00011.html"
          },
          {
            "name": "DSA-4660",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2020/dsa-4660"
          },
          {
            "name": "USN-4539-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4539-1/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in DAViCal Andrew\u0027s Web Libraries (AWL) through 0.60. Session management does not use a sufficiently hard-to-guess session key. Anyone who can guess the microsecond time (and the incrementing session_id) can impersonate a session."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-09-28T17:06:22.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://gitlab.com/davical-project/awl/-/issues/19"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=956650"
        },
        {
          "name": "[debian-lts-announce] 20200417 [SECURITY] [DLA 2178-1] awl security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/04/msg00011.html"
        },
        {
          "name": "DSA-4660",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2020/dsa-4660"
        },
        {
          "name": "USN-4539-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4539-1/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-11728",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An issue was discovered in DAViCal Andrew\u0027s Web Libraries (AWL) through 0.60. Session management does not use a sufficiently hard-to-guess session key. Anyone who can guess the microsecond time (and the incrementing session_id) can impersonate a session."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://gitlab.com/davical-project/awl/-/issues/19",
              "refsource": "MISC",
              "url": "https://gitlab.com/davical-project/awl/-/issues/19"
            },
            {
              "name": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=956650",
              "refsource": "MISC",
              "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=956650"
            },
            {
              "name": "[debian-lts-announce] 20200417 [SECURITY] [DLA 2178-1] awl security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/04/msg00011.html"
            },
            {
              "name": "DSA-4660",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2020/dsa-4660"
            },
            {
              "name": "USN-4539-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4539-1/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-11728",
    "datePublished": "2020-04-15T15:37:12.000Z",
    "dateReserved": "2020-04-12T00:00:00.000Z",
    "dateUpdated": "2024-08-04T11:41:59.965Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

usn-4539-1

Vulnerability from osv_ubuntu

Published

2020-09-24 18:18

Modified

2026-04-27 14:11

Summary

awl vulnerability

Details

Andrew Bartlett discovered that DAViCal Andrew's Web Libraries (AWL) did not properly manage session keys. An attacker could possibly use this issue to impersonate a session. (CVE-2020-11728)

References

URL

Type

	https://ubuntu.com/security/notices/USN-4539-1	ADVISORY
	https://ubuntu.com/security/CVE-2020-11728	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-11728",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libawl-php",
            "binary_version": "0.60-1+deb10u1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "awl",
        "purl": "pkg:deb/ubuntu/awl@0.60-1+deb10u1ubuntu1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.60-1+deb10u1ubuntu1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.60-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Andrew Bartlett discovered that DAViCal Andrew\u0027s Web Libraries (AWL) did\nnot properly manage session keys. An attacker could possibly use this\nissue to impersonate a session. (CVE-2020-11728)\n",
  "id": "USN-4539-1",
  "modified": "2026-04-27T14:11:25Z",
  "published": "2020-09-24T18:18:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4539-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-11728"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "awl vulnerability",
  "upstream": [
    "UBUNTU-CVE-2020-11728"
  ]
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

ubuntu-cve-2020-11728

Vulnerability from osv_ubuntu

CVE-2020-11728 (GCVE-0-2020-11728)

usn-4539-1

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature