CWE-367
Time-of-check Time-of-use (TOCTOU) Race Condition
The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.
CVE-2021-31427 (GCVE-0-2021-31427)
Vulnerability from cvelistv5 – Published: 2021-04-29 16:31 – Updated: 2024-08-03 22:55
VLAI
Summary
This vulnerability allows local attackers to disclose sensitive information on affected installations of Parallels Desktop 15.1.5-47309. An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the Open Tools Gate component. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-13082.
Severity
7.3 (High)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://kb.parallels.com/en/125013 | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
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CVE-2021-32708 (GCVE-0-2021-32708)
Vulnerability from cvelistv5 – Published: 2021-06-24 16:30 – Updated: 2024-08-03 23:25
VLAI
Title
Time-of-check Time-of-use (TOCTOU) Race Condition in league/flysystem
Summary
Flysystem is an open source file storage library for PHP. The whitespace normalisation using in 1.x and 2.x removes any unicode whitespace. Under certain specific conditions this could potentially allow a malicious user to execute code remotely. The conditions are: A user is allowed to supply the path or filename of an uploaded file, the supplied path or filename is not checked against unicode chars, the supplied pathname checked against an extension deny-list, not an allow-list, the supplied path or filename contains a unicode whitespace char in the extension, the uploaded file is stored in a directory that allows PHP code to be executed. Given these conditions are met a user can upload and execute arbitrary code on the system under attack. The unicode whitespace removal has been replaced with a rejection (exception). For 1.x users, upgrade to 1.1.4. For 2.x users, upgrade to 2.1.1.
Severity
9.8 (Critical)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/thephpleague/flysystem/securit… | x_refsource_CONFIRM |
| https://github.com/thephpleague/flysystem/commit/… | x_refsource_MISC |
| https://github.com/thephpleague/flysystem/commit/… | x_refsource_MISC |
| https://packagist.org/packages/league/flysystem | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| thephpleague | flysystem |
Affected:
< 1.1.4
Affected: >= 2.0.0, < 2.1.1 |
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CVE-2021-33632 (GCVE-0-2021-33632)
Vulnerability from cvelistv5 – Published: 2024-03-25 06:59 – Updated: 2024-08-03 23:58
VLAI
Title
TOCTOU Race Condition problem in iSulad
Summary
Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in openEuler iSulad on Linux allows Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions. This vulnerability is associated with program files https://gitee.Com/openeuler/iSulad/blob/master/src/cmd/isulad/main.C.
This issue affects iSulad: 2.0.18-13, from 2.1.4-1 through 2.1.4-2.
Severity
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
7 references
Impacted products
Credits
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CVE-2021-34788 (GCVE-0-2021-34788)
Vulnerability from cvelistv5 – Published: 2021-10-06 19:40 – Updated: 2024-11-07 21:51
VLAI
Title
Cisco AnyConnect Secure Mobility Client for Linux and Mac OS with VPN Posture (HostScan) Module Shared Library Hijacking Vulnerability
Summary
A vulnerability in the shared library loading mechanism of Cisco AnyConnect Secure Mobility Client for Linux and Mac OS could allow an authenticated, local attacker to perform a shared library hijacking attack on an affected device if the VPN Posture (HostScan) Module is installed on the AnyConnect client. This vulnerability is due to a race condition in the signature verification process for shared library files that are loaded on an affected device. An attacker could exploit this vulnerability by sending a series of crafted interprocess communication (IPC) messages to the AnyConnect process. A successful exploit could allow the attacker to execute arbitrary code on the affected device with root privileges. To exploit this vulnerability, the attacker must have a valid account on the system.
Severity
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco AnyConnect Secure Mobility Client |
Affected:
n/a
|
Date Public
2021-10-06 00:00
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CVE-2021-34986 (GCVE-0-2021-34986)
Vulnerability from cvelistv5 – Published: 2022-07-15 19:05 – Updated: 2024-08-04 00:26
VLAI
Summary
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.5.0 (49183). An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Parallels Service. By creating a symbolic link, an attacker can abuse the service to execute a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-13932.
Severity
7.8 (High)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://kb.parallels.com/en/125013 | x_refsource_MISC |
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CVE-2021-3922 (GCVE-0-2021-3922)
Vulnerability from cvelistv5 – Published: 2022-05-18 16:10 – Updated: 2024-08-03 17:09
VLAI
Summary
A race condition vulnerability was reported in IMController, a software component of Lenovo System Interface Foundation, prior to version 1.1.20.3 that could allow a local attacker to connect and interact with the IMController child process' named pipe.
Severity
7.8 (High)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://support.lenovo.com/us/en/product_security… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lenovo | IMController |
Affected:
unspecified , < 1.1.20.3
(custom)
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CVE-2021-3969 (GCVE-0-2021-3969)
Vulnerability from cvelistv5 – Published: 2022-05-18 16:10 – Updated: 2024-08-03 17:09
VLAI
Summary
A Time of Check Time of Use (TOCTOU) vulnerability was reported in IMController, a software component of Lenovo System Interface Foundation, prior to version 1.1.20.3that could allow a local attacker to elevate privileges.
Severity
7.8 (High)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://support.lenovo.com/us/en/product_security… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lenovo | IMController |
Affected:
unspecified , < 1.1.20.3
(custom)
|
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CVE-2021-4001 (GCVE-0-2021-4001)
Vulnerability from cvelistv5 – Published: 2022-01-21 00:00 – Updated: 2024-08-03 17:16
VLAI
Summary
A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel versions prior to 5.16 rc2.
Severity
No CVSS data available.
CWE
Assigner
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CVE-2022-0280 (GCVE-0-2022-0280)
Vulnerability from cvelistv5 – Published: 2022-03-10 22:35 – Updated: 2024-08-02 23:25
VLAI
Title
McAfee Total Protection (MTP) - File Deletion vulnerability
Summary
A race condition vulnerability exists in the QuickClean feature of McAfee Total Protection for Windows prior to 16.0.43 that allows a local user to gain privilege elevation and perform an arbitrary file delete. This could lead to sensitive files being deleted and potentially cause denial of service. This attack exploits the way symlinks are created and how the product works with them.
Severity
7.5 (High)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://service.mcafee.com/?articleId=TS103271&pa… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| McAfee | McAfee Total Protection for Windows |
Affected:
unspecified , ≤ 16.0.42
(custom)
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CVE-2022-0915 (GCVE-0-2022-0915)
Vulnerability from cvelistv5 – Published: 2022-04-12 18:35 – Updated: 2024-09-16 18:35
VLAI
Title
Logitech Sync desktop application prior to 2.4.574 - TOCTOU during installation leads to privelege escalation
Summary
There is a Time-of-check Time-of-use (TOCTOU) Race Condition Vulnerability in Logitech Sync for Windows prior to 2.4.574. Successful exploitation of these vulnerabilities may escalate the permission to the system user.
Severity
6 (Medium)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://prosupport.logi.com/hc/en-us/articles/360… | x_refsource_MISC |
Impacted products
Date Public
2022-04-08 00:00
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"name": "https://prosupport.logi.com/hc/en-us/articles/360040085114-Download-Logitech-Sync",
"refsource": "MISC",
"url": "https://prosupport.logi.com/hc/en-us/articles/360040085114-Download-Logitech-Sync"
}
]
},
"solution": [
{
"lang": "en",
"value": "Update to 2.4.574"
}
],
"source": {
"discovery": "EXTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "b573e801-1dd3-4adf-bd73-c9b814fbe067",
"assignerShortName": "Logitech",
"cveId": "CVE-2022-0915",
"datePublished": "2022-04-12T18:35:09.413Z",
"dateReserved": "2022-03-10T00:00:00.000Z",
"dateUpdated": "2024-09-16T18:35:00.585Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
Mitigation
Phase: Implementation
Description:
- The most basic advice for TOCTOU vulnerabilities is to not perform a check before the use. This does not resolve the underlying issue of the execution of a function on a resource whose state and identity cannot be assured, but it does help to limit the false sense of security given by the check.
Mitigation
Phase: Implementation
Description:
- When the file being altered is owned by the current user and group, set the effective gid and uid to that of the current user and group when executing this statement.
Mitigation
Phase: Architecture and Design
Description:
- Limit the interleaving of operations on files from multiple processes.
Mitigation
Phases: Implementation, Architecture and Design
Description:
- If you cannot perform operations atomically and you must share access to the resource between multiple processes or threads, then try to limit the amount of time (CPU cycles) between the check and use of the resource. This will not fix the problem, but it could make it more difficult for an attack to succeed.
Mitigation
Phase: Implementation
Description:
- Recheck the resource after the use call to verify that the action was taken appropriately.
Mitigation
Phase: Architecture and Design
Description:
- Ensure that some environmental locking mechanism can be used to protect resources effectively.
Mitigation
Phase: Implementation
Description:
- Ensure that locking occurs before the check, as opposed to afterwards, such that the resource, as checked, is the same as it is when in use.
CAPEC-27: Leveraging Race Conditions via Symbolic Links
This attack leverages the use of symbolic links (Symlinks) in order to write to sensitive files. An attacker can create a Symlink link to a target file not otherwise accessible to them. When the privileged program tries to create a temporary file with the same name as the Symlink link, it will actually write to the target file pointed to by the attackers' Symlink link. If the attacker can insert malicious content in the temporary file they will be writing to the sensitive file by using the Symlink. The race occurs because the system checks if the temporary file exists, then creates the file. The attacker would typically create the Symlink during the interval between the check and the creation of the temporary file.
CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.