{"id":"UBUNTU-CVE-2020-11728","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.","modified":"2026-01-30T02:32:31.688525Z","published":"2020-04-15T16:15:00Z","related":["USN-4539-1"],"upstream":["CVE-2020-11728"],"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"}],"affected":[{"package":{"name":"awl","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/awl@0.56-1ubuntu1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.55-1","0.56-1","0.56-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libawl-php","binary_version":"0.56-1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11728.json"}},{"package":{"name":"awl","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/awl@0.59-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.57-1","0.58-1","0.59-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libawl-php","binary_version":"0.59-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11728.json"}},{"package":{"name":"awl","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/awl@0.60-1+deb10u1ubuntu1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.60-1+deb10u1ubuntu1"}]}],"versions":["0.60-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libawl-php","binary_version":"0.60-1+deb10u1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-11728.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}