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hackeroneSvalkanovH1:2446433
HistoryApr 03, 2024 - 9:28 p.m.

Internet Bug Bounty: [CVE-2024-26146] Header Parsing leads to Possible Denial of Service Vulnerability

2024-04-0321:28:53
svalkanov
hackerone.com
40
internet bug bounty
cve-2024-26146
header parsing
possible denial of service
vulnerability

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.2%

I’ve made a report and provided a patch https://discuss.rubyonrails.org/t/possible-denial-of-service-vulnerability-in-rack-header-parsing/84942

Impact

Carefully crafted headers can cause header parsing in Rack to take longer than expected resulting in a possible denial of service issue. Accept and Forwarded headers are impacted.

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.2%