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githubGitHub Advisory DatabaseGHSA-HRPP-H998-J3PP
HistoryNov 27, 2022 - 12:30 a.m.

qs vulnerable to Prototype Pollution

2022-11-2700:30:50
CWE-1321
GitHub Advisory Database
github.com
46
vulnerable
prototype pollution
node process hang
query string
url
unauthenticated remote attacker
attack payload
backported
software

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.014 Low

EPSS

Percentile

86.6%

qs before 6.10.3 allows attackers to cause a Node process hang because an __ proto__ key can be used. In many typical web framework use cases, an unauthenticated remote attacker can place the attack payload in the query string of the URL that is used to visit the application, such as a[__proto__]=b&a[__proto__]&a[length]=100000000. The fix was backported to qs 6.9.7, 6.8.3, 6.7.3, 6.6.1, 6.5.3, 6.4.1, 6.3.3, and 6.2.4.

Affected configurations

Vulners
Node
qs_projectqsRange<6.2.4
OR
qs_projectqsRange<6.3.3
OR
qs_projectqsRange<6.4.1
OR
qs_projectqsRange<6.5.3
OR
qs_projectqsRange<6.6.1
OR
qs_projectqsRange<6.7.3
OR
qs_projectqsRange<6.8.3
OR
qs_projectqsRange<6.9.7
OR
qs_projectqsRange<6.10.3

References

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.014 Low

EPSS

Percentile

86.6%