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

CVE-2018-1000001

Disclosure Date: January 31, 2018 •
CVE-2018-1000001 CVSS v3 Base Score: 7.8
Exploited in the Wild
Reported by gwillcox-r7
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Description

In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution.

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CVSS V3 Severity and Metrics
Base Score:
7.8 High
Impact Score:
5.9
Exploitability Score:
1.8
Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
n/a
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
exploit/linux/local/glibc_realpath_priv_esc
Reporter
Unknown

Vendors

  • canonical,
  • gnu,
  • redhat

Products

  • enterprise linux desktop 7.0,
  • enterprise linux server 7.0,
  • enterprise linux server aus 7.6,
  • enterprise linux server eus 7.6,
  • enterprise linux server tus 7.6,
  • enterprise linux workstation 7.0,
  • glibc,
  • ubuntu linux 12.04,
  • ubuntu linux 14.04,
  • ubuntu linux 16.04,
  • ubuntu linux 17.10,
  • virtualization host 4.0

Exploited in the Wild

Reported by:
Technical Analysis