Vulnerability CVE-2020-11728

Vulnerability Name:

CVE-2020-11728 (CCN-180073)

Assigned:

2020-04-13

Published:

2020-04-13

Updated:

2020-09-28

Summary:

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.

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): None

7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): High Availibility (A): None

CVSS v2 Severity:

5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:C/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): Complete Availibility (A): None

Vulnerability Type:

CWE-384

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2020-11728

Source: CCN
Type: Debian Bug report logs - #956650
awl: CVE-2020-11728 CVE-2020-11729

Source: MISC
Type: Mailing List, Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=956650

Source: XF
Type: UNKNOWN
davical-cve202011728-weak-security(180073)

Source: CCN
Type: awl GitLab Web site
[SECURITY] LSIDLogin() is insecure and can allow user impersonation

Source: MISC
Type: Issue Tracking, Third Party Advisory
https://gitlab.com/davical-project/awl/-/issues/19

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20200417 [SECURITY] [DLA 2178-1] awl security update

Source: UBUNTU
Type: UNKNOWN
USN-4539-1

Source: DEBIAN
Type: Third Party Advisory
DSA-4660

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-11728

Vulnerable Configuration:

Configuration 2:

cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*

OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

OR cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Denotes that component is vulnerable

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