CVE-2020-15704

CVSS V2 Low 2.1 CVSS V3 Medium 5.5
Description
The modprobe child process in the ./debian/patches/load_ppp_generic_if_needed patch file incorrectly handled module loading. A local non-root attacker could exploit the MODPROBE_OPTIONS environment variable to read arbitrary root files. Fixed in 2.4.5-5ubuntu1.4, 2.4.5-5.1ubuntu2.3+esm2, 2.4.7-1+2ubuntu1.16.04.3, 2.4.7-2+2ubuntu1.3, 2.4.7-2+4.1ubuntu5.1, 2.4.7-2+4.1ubuntu6. Was ZDI-CAN-11504.
Overview
  • CVE ID
  • CVE-2020-15704
  • Assigner
  • security@ubuntu.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-09-01T00:15:09
  • Last Modified Date
  • 2021-11-18T17:44:58
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:canonical:ppp:*:*:*:*:*:*:*:* 1 OR 2.4.7-1\+ubuntu1.16.04.3
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* 0 OR
AND
cpe:2.3:a:canonical:ppp:*:*:*:*:*:*:*:* 1 OR 2.4.7-2\+2ubuntu1.3
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* 0 OR
AND
cpe:2.3:a:canonical:ppp:*:*:*:*:*:*:*:* 1 OR 2.4.7-2\+4.1ubuntu5.1
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* 0 OR
AND
cpe:2.3:a:canonical:ppp:*:*:*:*:*:*:*:* 1 OR 2.4.5-5ubuntu1.4
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* 0 OR
AND
cpe:2.3:a:canonical:ppp:*:*:*:*:*:*:*:* 1 OR 2.4.5-5.1ubuntu2.3\+esm2
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:P/I:N/A:N
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 2.1
  • Severity
  • LOW
  • Exploitability Score
  • 3.9
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://ubuntu.com/security/notices/USN-4451-2 Vendor Advisory
https://ubuntu.com/security/notices/USN-4451-1 Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-15704
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15704
History
Created Old Value New Value Data Type Notes
2022-05-10 06:45:50 Added to TrackCVE
2022-12-04 21:47:51 2020-09-01T00:15Z 2020-09-01T00:15:09 CVE Published Date updated
2022-12-04 21:47:51 2021-11-18T17:44:58 CVE Modified Date updated
2022-12-04 21:47:51 Analyzed Vulnerability Status updated