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Veracode Vulnerability DatabaseVERACODE:46581

HistoryApr 23, 2024 - 5:53 a.m.

Time-of-check Time-of-use (TOCTOU) Attack

2024-04-2305:53:15

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

openstack storlets

toctou attack

vulnerability

file permission

unauthorized access

CVSS3

4.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.5

Confidence

High

EPSS

Percentile

9.0%

JSON

OpenStack Storlets is vulnerable to Time-of-check Time-of-use (TOCTOU) Attack. The vulnerability is caused due to a lack of strict permission checks and restriction, leading to improper permission settings on file creation. This allows an attacker to gain unauthorized access to or modify sensitive files.

References

bugs.launchpad.net/storlets/+bug/2047723

gist.github.com/Fewword/f098d8d6375ac25e27b18c0e57be532f

github.com/openstack/storlets/blob/928de77bac448c9bc04a274c494608ce7190563a/storlets/gateway/gateways/docker/gateway.py#L320C20-L320C30

github.com/openstack/storlets/commit/5ad58804af885db3eb7a78bea5000c401eeeb70e

osv.dev/vulnerability/GHSA-rfm2-f94j-qhjp

CVSS3

4.9

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.5

Confidence

High

EPSS

Percentile

9.0%

JSON

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