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Vulnerable Software

Vulnerability Details CVE-2019-18684

Sudo through 1.8.29 allows local users to escalate to root if they have write access to file descriptor 3 of the sudo process. This occurs because of a race condition between determining a uid, and the setresuid and openat system calls. The attacker can write "ALL ALL=(ALL) NOPASSWD:ALL" to /proc/#####/fd/3 at a time when Sudo is prompting for a password. NOTE: This has been disputed due to the way Linux /proc works. It has been argued that writing to /proc/#####/fd/3 would only be viable if you had permission to write to /etc/sudoers. Even with write permission to /proc/#####/fd/3, it would not help you write to /etc/sudoers

Exploit prediction scoring system (EPSS) score

EPSS Score 0.001

EPSS Ranking 29.6%

CVSS Severity

CVSS v3 Score 7.0

CVSS v2 Score 6.9

References

Products affected by CVE-2019-18684

Sudo Project » Sudo » Version: 1.3.0

cpe:2.3:a:sudo_project:sudo:1.3.0
Sudo Project » Sudo » Version: 1.3.1

cpe:2.3:a:sudo_project:sudo:1.3.1
Sudo Project » Sudo » Version: 1.4.0

cpe:2.3:a:sudo_project:sudo:1.4.0
Sudo Project » Sudo » Version: 1.5.0

cpe:2.3:a:sudo_project:sudo:1.5.0
Sudo Project » Sudo » Version: 1.5.1

cpe:2.3:a:sudo_project:sudo:1.5.1
Sudo Project » Sudo » Version: 1.5.2

cpe:2.3:a:sudo_project:sudo:1.5.2
Sudo Project » Sudo » Version: 1.5.3

cpe:2.3:a:sudo_project:sudo:1.5.3
Sudo Project » Sudo » Version: 1.5.4

cpe:2.3:a:sudo_project:sudo:1.5.4
Sudo Project » Sudo » Version: 1.5.6

cpe:2.3:a:sudo_project:sudo:1.5.6
Sudo Project » Sudo » Version: 1.5.7

cpe:2.3:a:sudo_project:sudo:1.5.7
Sudo Project » Sudo » Version: 1.5.8

cpe:2.3:a:sudo_project:sudo:1.5.8
Sudo Project » Sudo » Version: 1.5.9

cpe:2.3:a:sudo_project:sudo:1.5.9
Sudo Project » Sudo » Version: 1.6.0

cpe:2.3:a:sudo_project:sudo:1.6.0
Sudo Project » Sudo » Version: 1.6.1

cpe:2.3:a:sudo_project:sudo:1.6.1
Sudo Project » Sudo » Version: 1.6.2

cpe:2.3:a:sudo_project:sudo:1.6.2
Sudo Project » Sudo » Version: 1.6.3

cpe:2.3:a:sudo_project:sudo:1.6.3
Sudo Project » Sudo » Version: 1.6.4

cpe:2.3:a:sudo_project:sudo:1.6.4
Sudo Project » Sudo » Version: 1.6.5

cpe:2.3:a:sudo_project:sudo:1.6.5
Sudo Project » Sudo » Version: 1.6.6

cpe:2.3:a:sudo_project:sudo:1.6.6
Sudo Project » Sudo » Version: 1.6.7

cpe:2.3:a:sudo_project:sudo:1.6.7
Sudo Project » Sudo » Version: 1.6.8

cpe:2.3:a:sudo_project:sudo:1.6.8
Sudo Project » Sudo » Version: 1.6.9

cpe:2.3:a:sudo_project:sudo:1.6.9
Sudo Project » Sudo » Version: 1.7.0

cpe:2.3:a:sudo_project:sudo:1.7.0
Sudo Project » Sudo » Version: 1.7.1

cpe:2.3:a:sudo_project:sudo:1.7.1
Sudo Project » Sudo » Version: 1.7.10

cpe:2.3:a:sudo_project:sudo:1.7.10
Sudo Project » Sudo » Version: 1.7.2

cpe:2.3:a:sudo_project:sudo:1.7.2
Sudo Project » Sudo » Version: 1.7.3

cpe:2.3:a:sudo_project:sudo:1.7.3
Sudo Project » Sudo » Version: 1.7.4

cpe:2.3:a:sudo_project:sudo:1.7.4
Sudo Project » Sudo » Version: 1.7.5

cpe:2.3:a:sudo_project:sudo:1.7.5
Sudo Project » Sudo » Version: 1.7.6

cpe:2.3:a:sudo_project:sudo:1.7.6
Sudo Project » Sudo » Version: 1.7.7

cpe:2.3:a:sudo_project:sudo:1.7.7
Sudo Project » Sudo » Version: 1.7.8

cpe:2.3:a:sudo_project:sudo:1.7.8
Sudo Project » Sudo » Version: 1.7.9

cpe:2.3:a:sudo_project:sudo:1.7.9
Sudo Project » Sudo » Version: 1.8.0

cpe:2.3:a:sudo_project:sudo:1.8.0
Sudo Project » Sudo » Version: 1.8.1

cpe:2.3:a:sudo_project:sudo:1.8.1
Sudo Project » Sudo » Version: 1.8.10

cpe:2.3:a:sudo_project:sudo:1.8.10
Sudo Project » Sudo » Version: 1.8.11

cpe:2.3:a:sudo_project:sudo:1.8.11
Sudo Project » Sudo » Version: 1.8.12

cpe:2.3:a:sudo_project:sudo:1.8.12
Sudo Project » Sudo » Version: 1.8.13

cpe:2.3:a:sudo_project:sudo:1.8.13
Sudo Project » Sudo » Version: 1.8.14

cpe:2.3:a:sudo_project:sudo:1.8.14
Sudo Project » Sudo » Version: 1.8.15

cpe:2.3:a:sudo_project:sudo:1.8.15
Sudo Project » Sudo » Version: 1.8.16

cpe:2.3:a:sudo_project:sudo:1.8.16
Sudo Project » Sudo » Version: 1.8.17

cpe:2.3:a:sudo_project:sudo:1.8.17
Sudo Project » Sudo » Version: 1.8.18

cpe:2.3:a:sudo_project:sudo:1.8.18
Sudo Project » Sudo » Version: 1.8.19

cpe:2.3:a:sudo_project:sudo:1.8.19
Sudo Project » Sudo » Version: 1.8.2

cpe:2.3:a:sudo_project:sudo:1.8.2
Sudo Project » Sudo » Version: 1.8.20

cpe:2.3:a:sudo_project:sudo:1.8.20
Sudo Project » Sudo » Version: 1.8.21

cpe:2.3:a:sudo_project:sudo:1.8.21
Sudo Project » Sudo » Version: 1.8.22

cpe:2.3:a:sudo_project:sudo:1.8.22
Sudo Project » Sudo » Version: 1.8.23

cpe:2.3:a:sudo_project:sudo:1.8.23
Sudo Project » Sudo » Version: 1.8.24

cpe:2.3:a:sudo_project:sudo:1.8.24
Sudo Project » Sudo » Version: 1.8.25

cpe:2.3:a:sudo_project:sudo:1.8.25
Sudo Project » Sudo » Version: 1.8.26

cpe:2.3:a:sudo_project:sudo:1.8.26
Sudo Project » Sudo » Version: 1.8.27

cpe:2.3:a:sudo_project:sudo:1.8.27
Sudo Project » Sudo » Version: 1.8.28

cpe:2.3:a:sudo_project:sudo:1.8.28
Sudo Project » Sudo » Version: 1.8.29

cpe:2.3:a:sudo_project:sudo:1.8.29
Sudo Project » Sudo » Version: 1.8.3

cpe:2.3:a:sudo_project:sudo:1.8.3
Sudo Project » Sudo » Version: 1.8.4

cpe:2.3:a:sudo_project:sudo:1.8.4
Sudo Project » Sudo » Version: 1.8.5

cpe:2.3:a:sudo_project:sudo:1.8.5
Sudo Project » Sudo » Version: 1.8.6

cpe:2.3:a:sudo_project:sudo:1.8.6
Sudo Project » Sudo » Version: 1.8.7

cpe:2.3:a:sudo_project:sudo:1.8.7
Sudo Project » Sudo » Version: 1.8.8

cpe:2.3:a:sudo_project:sudo:1.8.8
Sudo Project » Sudo » Version: 1.8.9

cpe:2.3:a:sudo_project:sudo:1.8.9

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Vulnerability Details CVE-2019-18684

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