CVE-2005-4352

Severity

21%

Complexity

39%

Confidentiality

48%

The securelevels implementation in NetBSD 2.1 and earlier, and Linux 2.6.15 and earlier, allows local users to bypass time setting restrictions and set the clock backwards by setting the clock ahead to the maximum unixtime value (19 Jan 2038), which then wraps around to the minimum value (13 Dec 1901), which can then be set ahead to the desired time, aka "settimeofday() time wrap."

The securelevels implementation in NetBSD 2.1 and earlier, and Linux 2.6.15 and earlier, allows local users to bypass time setting restrictions and set the clock backwards by setting the clock ahead to the maximum unixtime value (19 Jan 2038), which then wraps around to the minimum value (13 Dec 1901), which can then be set ahead to the desired time, aka "settimeofday() time wrap."

CVSS 2.0 Base Score 2.1. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:N/I:P/A:N).

Overview

First reported 19 years ago

2005-12-31 05:00:00

Last updated 6 years ago

2018-10-19 15:40:00

Affected Software

Linux Kernel 2.6.0

2.6.0

Linux Kernel 2.6 test1

2.6.0

Linux Kernel 2.6 test10

2.6.0

Linux Kernel 2.6 test11

2.6.0

Linux Kernel 2.6 test2

2.6.0

Linux Kernel 2.6 test3

2.6.0

Linux Kernel 2.6 test4

2.6.0

Linux Kernel 2.6 test5

2.6.0

Linux Kernel 2.6 test6

2.6.0

Linux Kernel 2.6 test7

2.6.0

Linux Kernel 2.6 test8

2.6.0

Linux Kernel 2.6 test9

2.6.0

Linux Kernel 2.6.1

2.6.1

Linux Kernel 2.6.1 Release Candidate 1

2.6.1

Linux Kernel 2.6.1 Release Candidate 2

2.6.1

Linux Kernel 2.6.2

2.6.2

Linux Kernel 2.6.3

2.6.3

Linux Kernel 2.6.4

2.6.4

Linux Kernel 2.6.5

2.6.5

Linux Kernel 2.6.6

2.6.6

Linux Kernel 2.6.6 Release Candidate 1

2.6.6

Linux Kernel 2.6.7

2.6.7

Linux Kernel 2.6.7 Release Candidate 1

2.6.7

Linux Kernel 2.6.8

2.6.8

Linux Kernel 2.6.8 Release Candidate 1

2.6.8

Linux Kernel 2.6.8 Release Candidate 2

2.6.8

Linux Kernel 2.6.8 Release Candidate 3

2.6.8

Linux Kernel 2.6.10

2.6.10

Linux Kernel 2.6.10 Release Candidate 2

2.6.10

Linux Kernel 2.6.11

2.6.11

Linux Kernel 2.6.11 Release Candidate 2

2.6.11

Linux Kernel 2.6.11 Release Candidate 3

2.6.11

Linux Kernel 2.6.11 Release Candidate 4

2.6.11

Linux Kernel 2.6.11.5

2.6.11.5

Linux Kernel 2.6.11.6

2.6.11.6

Linux Kernel 2.6.11.7

2.6.11.7

Linux Kernel 2.6.11.8

2.6.11.8

Linux Kernel 2.6.11.11

2.6.11.11

Linux Kernel 2.6.11.12

2.6.11.12

Linux Kernel 2.6.12 Release Candidate 1

2.6.12

Linux Kernel 2.6.12 Release Candidate 4

2.6.12

Linux Kernel 2.6.12 Release Candidate 5

2.6.12

Linux Kernel 2.6.12.1

2.6.12.1

Linux Kernel 2.6.12.2

2.6.12.2

Linux Kernel 2.6.12.3

2.6.12.3

Linux Kernel 2.6.12.4

2.6.12.4

Linux Kernel 2.6.12.5

2.6.12.5

Linux Kernel 2.6.12.6

2.6.12.6

Linux Kernel 2.6.13

2.6.13

Linux Kernel 2.6.13 Release Candidate 1

2.6.13

Linux Kernel 2.6.13 Release Candidate 4

2.6.13

Linux Kernel 2.6.13 Release Candidate 6

2.6.13

Linux Kernel 2.6.13 Release Candidate 7

2.6.13

Linux Kernel 2.6.13.1

2.6.13.1

Linux Kernel 2.6.13.2

2.6.13.2

Linux Kernel 2.6.13.3

2.6.13.3

Linux Kernel 2.6.13.4

2.6.13.4

Linux Kernel 2.6.14

2.6.14

Linux Kernel 2.6.14 Release Candidate 1

2.6.14

Linux Kernel 2.6.14 Release Candidate 2

2.6.14

Linux Kernel 2.6.14 Release Candidate 3

2.6.14

Linux Kernel 2.6.14 Release Candidate 4

2.6.14

Linux Kernel 2.6.14.1

2.6.14.1

Linux Kernel 2.6.14.2

2.6.14.2

Linux Kernel 2.6.14.3

2.6.14.3

Linux Kernel 2.6.15

2.6.15

Linux Kernel 2.6.15 Release Candidate 1

2.6.15

Linux Kernel 2.6.15 Release Candidate 3

2.6.15

NetBSD 1.6

1.6

NetBSD 1.6 Beta

1.6

NetBSD 1.6.1

1.6.1

NetBSD 1.6.2

1.6.2

NetBSD 2.0

2.0

NetBSD 2.0.1

2.0.1

NetBSD 2.0.2

2.0.2

NetBSD 2.0.3

2.0.3

NetBSD 2.1

2.1

References

20060109 Time modification flaw in BSD securelevels on NetBSD and Linux

Exploit, Vendor Advisory

25691

1015454

http://www.redteam-pentesting.de/advisories/rt-sa-2005-16.txt

Exploit, Vendor Advisory

20060109 Time modification flaw in BSD securelevels on NetBSD and Linux

20070615 rPSA-2007-0124-1 kernel xen

16170

Patch

bsd-securelevel-settimeofday-bypass(24036)

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