Common Weakness Enumeration

CWE-61

Allowed

UNIX Symbolic Link (Symlink) Following

Abstraction: Compound · Status: Incomplete

API response cwe.mitre.org

The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files.

270 vulnerabilities reference this CWE, most recent first.

CVE-2024-52535 (GCVE-0-2024-52535)

Vulnerability from cvelistv5 – Published: 2024-12-25 14:41 – Updated: 2024-12-26 18:11
VLAI
Summary
Dell SupportAssist for Home PCs versions 4.6.1 and prior and Dell SupportAssist for Business PCs versions 4.5.0 and prior, contain a symbolic link (symlink) attack vulnerability in the software remediation component. A low-privileged authenticated user could potentially exploit this vulnerability, gaining privileges escalation, leading to arbitrary deletion of files and folders from the system.
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
Impacted products
Date Public
2024-12-23 06:30
Credits
Dell would like to thank mdanilor for reporting this issue.
Show details on NVD website
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CVE-2024-52522 (GCVE-0-2024-52522)

Vulnerability from cvelistv5 – Published: 2024-11-15 17:15 – Updated: 2024-11-21 14:56
VLAI
Title
Rclone Improper Permission and Ownership Handling on Symlink Targets with --links and --metadata
Summary
Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Insecure handling of symlinks with --links and --metadata in rclone while copying to local disk allows unprivileged users to indirectly modify ownership and permissions on symlink target files when a superuser or privileged process performs a copy. This vulnerability could enable privilege escalation and unauthorized access to critical system files, compromising system integrity, confidentiality, and availability. This vulnerability is fixed in 1.68.2.
Severity
5.4 (Medium)
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
  • CWE-281 - Improper Preservation of Permissions
Assigner
References
Impacted products
Vendor Product Version
rclone rclone Affected: >= 1.59.0, < 1.68.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2024-47877 (GCVE-0-2024-47877)

Vulnerability from cvelistv5 – Published: 2024-10-11 16:36 – Updated: 2024-10-11 17:49
VLAI
Title
Extract has insufficient checks allowing attacker to create symlinks outside the extraction directory.
Summary
Extract is aA Go library to extract archives in zip, tar.gz or tar.bz2 formats. A maliciously crafted archive may allow an attacker to create a symlink outside the extraction target directory. This vulnerability is fixed in 4.0.0. If you're using the Extractor.FS interface, then upgrading to /v4 will require to implement the new methods that have been added.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
Impacted products
Vendor Product Version
codeclysm extract Affected: < 4.0.0
Create a notification for this product.
codeclysm extract Affected: 0 , < 4.0.0 (custom)
    cpe:2.3:a:codeclysm:extract:*:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2024-47515 (GCVE-0-2024-47515)

Vulnerability from cvelistv5 – Published: 2024-12-24 03:26 – Updated: 2025-08-12 13:32
VLAI
Title
Pagure: generate_archive() follows symbolic links in temporary clones
Summary
A vulnerability was found in Pagure. Support of symbolic links during repository archiving of repositories allows the disclosure of local files. This flaw allows a malicious user to take advantage of the Pagure instance.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
URL Tags
https://access.redhat.com/security/cve/CVE-2024-47515 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2315806 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Affected: 5.14.1
Date Public
2024-10-01 00:00
Show details on NVD website
To clipboard 

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CVE-2024-47480 (GCVE-0-2024-47480)

Vulnerability from cvelistv5 – Published: 2024-12-18 01:05 – Updated: 2024-12-18 15:13
VLAI
Summary
Dell Inventory Collector Client, versions prior to 12.7.0, contains an Improper Link Resolution Before File Access vulnerability. A low-privilege attacker with local access may exploit this vulnerability, potentially resulting in Elevation of Privileges and unauthorized file system access.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
Impacted products
Vendor Product Version
Dell Inventory Collector Client Affected: N/A , < 12.7.0 (semver)
Create a notification for this product.
Date Public
2024-12-17 06:30
Credits
Dell Technologies would like to thank mdanilor for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2024-45418 (GCVE-0-2024-45418)

Vulnerability from cvelistv5 – Published: 2025-02-25 19:52 – Updated: 2025-02-25 20:07
VLAI
Title
Zoom Apps for macOS - Symbolic Link Following
Summary
Symlink following in the installer for some Zoom apps for macOS before version 6.1.5 may allow an authenticated user to conduct an escalation of privilege via network access.
Severity
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
Impacted products
Vendor Product Version
Zoom Communications, Inc Zoom Apps for macOS Affected: 0 , < 6.1.5 (custom)
Create a notification for this product.
Date Public
2024-11-12 13:00
Show details on NVD website
To clipboard 

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CVE-2024-45310 (GCVE-0-2024-45310)

Vulnerability from cvelistv5 – Published: 2024-09-03 19:07 – Updated: 2025-02-21 18:03
VLAI
Title
runc can be confused to create empty files/directories on the host
Summary
runc is a CLI tool for spawning and running containers according to the OCI specification. runc 1.1.13 and earlier, as well as 1.2.0-rc2 and earlier, can be tricked into creating empty files or directories in arbitrary locations in the host filesystem by sharing a volume between two containers and exploiting a race with `os.MkdirAll`. While this could be used to create empty files, existing files would not be truncated. An attacker must have the ability to start containers using some kind of custom volume configuration. Containers using user namespaces are still affected, but the scope of places an attacker can create inodes can be significantly reduced. Sufficiently strict LSM policies (SELinux/Apparmor) can also in principle block this attack -- we suspect the industry standard SELinux policy may restrict this attack's scope but the exact scope of protection hasn't been analysed. This is exploitable using runc directly as well as through Docker and Kubernetes. The issue is fixed in runc v1.1.14 and v1.2.0-rc3. Some workarounds are available. Using user namespaces restricts this attack fairly significantly such that the attacker can only create inodes in directories that the remapped root user/group has write access to. Unless the root user is remapped to an actual user on the host (such as with rootless containers that don't use `/etc/sub[ug]id`), this in practice means that an attacker would only be able to create inodes in world-writable directories. A strict enough SELinux or AppArmor policy could in principle also restrict the scope if a specific label is applied to the runc runtime, though neither the extent to which the standard existing policies block this attack nor what exact policies are needed to sufficiently restrict this attack have been thoroughly tested.
Severity
3.6 (Low)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-363 - Race Condition Enabling Link Following
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
Impacted products
Vendor Product Version
opencontainers runc Affected: < 1.1.14
Affected: >= 1.2.0-rc-1, < 1.2.0-rc.3
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2024-42367 (GCVE-0-2024-42367)

Vulnerability from cvelistv5 – Published: 2024-08-09 17:25 – Updated: 2025-06-09 12:17
VLAI
Title
In aiohttp, compressed files as symlinks are not protected from path traversal
Summary
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In versions on the 3.10 branch prior to version 3.10.2, static routes which contain files with compressed variants (`.gz` or `.br` extension) are vulnerable to path traversal outside the root directory if those variants are symbolic links. The server protects static routes from path traversal outside the root directory when `follow_symlinks=False` (default). It does this by resolving the requested URL to an absolute path and then checking that path relative to the root. However, these checks are not performed when looking for compressed variants in the `FileResponse` class, and symbolic links are then automatically followed when performing the `Path.stat()` and `Path.open()` to send the file. Version 3.10.2 contains a patch for the issue.
Severity
4.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
Impacted products
Vendor Product Version
aio-libs aiohttp Affected: >= 3.10.0b1, < 3.10.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2024-39578 (GCVE-0-2024-39578)

Vulnerability from cvelistv5 – Published: 2024-08-31 07:33 – Updated: 2024-09-03 15:45
VLAI
Summary
Dell PowerScale OneFS versions 8.2.2.x through 9.8.0.1 contains a UNIX symbolic link (symlink) following vulnerability. A local high privileged attacker could potentially exploit this vulnerability, leading to denial of service, information tampering.
Severity
6.3 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
Impacted products
Vendor Product Version
Dell PowerScale OneFS Affected: 8.2.2.x , ≤ 9.7.1.0 (semver)
Affected: 9.8.0.0
Create a notification for this product.
Date Public
2024-08-30 06:30
Show details on NVD website
To clipboard 

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CVE-2024-34015 (GCVE-0-2024-34015)

Vulnerability from cvelistv5 – Published: 2024-11-11 13:21 – Updated: 2025-02-27 22:59
VLAI
Summary
Sensitive information disclosure during file browsing due to improper symbolic link handling. The following products are affected: Acronis Backup plugin for cPanel & WHM (Linux) before build 1.8.3.818, Acronis Backup plugin for cPanel & WHM (Linux) before build 1.9.1.892.
Severity
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Acronis Acronis Backup plugin for cPanel & WHM Affected: unspecified , < 1.8.3.818 (semver)
Create a notification for this product.
Acronis Acronis Backup plugin for cPanel & WHM Affected: unspecified , < 1.9.1.892 (semver)
Create a notification for this product.
Credits
Milos Colakovic (mailto:mcolakovic@godaddy.com) Nikola Nikolic (mailto:nnikolic@godaddy.com)
Show details on NVD website
To clipboard 

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Mitigation
Implementation

Symbolic link attacks often occur when a program creates a tmp directory that stores files/links. Access to the directory should be restricted to the program as to prevent attackers from manipulating the files.

Mitigation MIT-48.1
Architecture and Design

Strategy: Separation of Privilege

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.
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.

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