Vulnerability Name:

CVE-2001-1534 (CCN-7494)

Assigned:2001-11-07
Published:2001-11-07
Updated:2021-07-15
Summary:mod_usertrack in Apache 1.3.11 through 1.3.20 generates session ID's using predictable information including host IP address, system time and server process ID, which allows local users to obtain session ID's and bypass authentication when these session ID's are used for authentication.
CVSS v3 Severity:4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-384
Vulnerability Consequences:Gain Access
References:Source: BUGTRAQ
Type: Broken Link
20011113 Brute-Forcing Web Application Session IDs

Source: MITRE
Type: CNA
CVE-2001-1534

Source: CCN
Type: iDefense iAlert White Paper - November 2001
Brute-Force Exploitation of Web Application Session Ids

Source: XF
Type: Broken Link
apache-modusertrack-predicticable-sessionid(7494)

Source: CCN
Type: OSVDB ID: 20242
Apache HTTP Server mod_usertrack Predictable Session ID Generation

Source: BID
Type: Third Party Advisory, VDB Entry
3521

Source: CCN
Type: BID-3521
Apache mod_usertrack Predictable ID Generation Vulnerability

Source: XF
Type: UNKNOWN
apache-modusertrack-predicticable-sessionid(7494)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:apache:http_server:*:*:*:*:*:*:*:* (Version >= 1.3.11 and <= 1.3.20)

  • Configuration CCN 1:
  • cpe:/a:apache:http_server:1.3.19:*:*:*:*:*:*:*
  • OR cpe:/a:apache:http_server:1.3.12:*:*:*:*:*:*:*
  • OR cpe:/a:apache:http_server:1.3.20:*:*:*:*:*:*:*
  • OR cpe:/a:apache:http_server:1.3.17:*:*:*:*:*:*:*
  • OR cpe:/a:apache:http_server:1.3.14:*:*:*:*:*:*:*
  • OR cpe:/a:apache:http_server:1.3.11:*:*:*:*:*:*:*
  • OR cpe:/a:apache:http_server:1.3.18:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    apache http server *
    apache http server 1.3.19
    apache http server 1.3.12
    apache http server 1.3.20
    apache http server 1.3.17
    apache http server 1.3.14
    apache http server 1.3.11
    apache http server 1.3.18