Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Local
0

CVE-2023-4641

Disclosure Date: December 27, 2023 •
CVE-2023-4641 CVSS v3 Base Score: 5.5
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Description

A flaw was found in shadow-utils. When asking for a new password, shadow-utils asks the password twice. If the password fails on the second attempt, shadow-utils fails in cleaning the buffer used to store the first entry. This may allow an attacker with enough access to retrieve the password from the memory.

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CVSS V3 Severity and Metrics
Base Score:
5.5 Medium
Impact Score:
3.6
Exploitability Score:
1.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Red Hat Enterprise Linux 8 not down converted
Red Hat Enterprise Linux 8.6 Extended Update Support not down converted
Red Hat Enterprise Linux 8.8 Extended Update Support not down converted
Red Hat Enterprise Linux 9 not down converted
Red Hat Enterprise Linux 6 not down converted
Red Hat Enterprise Linux 7 not down converted
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • redhat,
  • shadow-maint

Products

  • codeready linux builder 8.0,
  • codeready linux builder 9.0,
  • codeready linux builder for arm64 8.0 aarch64,
  • codeready linux builder for arm64 9.0 aarch64,
  • codeready linux builder for ibm z systems 8.0 s390x,
  • codeready linux builder for ibm z systems 9.0 s390x,
  • codeready linux builder for power little endian 8.0 ppc64le,
  • codeready linux builder for power little endian 9.0 ppc64le,
  • enterprise linux 8.0,
  • enterprise linux 9.0,
  • enterprise linux for arm 64 8.0,
  • enterprise linux for arm 64 9.0,
  • enterprise linux for ibm z systems 8.0 s390x,
  • enterprise linux for ibm z systems 9.0 s390x,
  • enterprise linux for power little endian 8.0 ppc64le,
  • enterprise linux for power little endian 9.0 ppc64le,
  • shadow-utils
Technical Analysis