Common Weakness Enumeration
CWE-59
AllowedImproper Link Resolution Before File Access ('Link Following')
Abstraction: Base · Status: Draft
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
2437 vulnerabilities reference this CWE, most recent first.
CVE-2026-55108 (GCVE-0-2026-55108)
Vulnerability from cvelistv5 – Published: 2026-08-28 16:11 – Updated: 2026-08-28 20:21
VLAI
EPSS
VEX
Title
KubeVela Terraform remote loader DoS via unbounded file read
Summary
KubeVela is an open source application delivery platform. Prior to 1.9.14, from 1.10.0-alpha.1 until 1.10.9, and from 1.11.0-alpha.1 until 1.11.0-alpha.4, the Terraform remote configuration loader in pkg/controller/utils/capability.go, GetTerraformConfigurationFromRemote, clones a repository supplied through a core.oam.dev/v1beta1 ComponentDefinition and follows repository-controlled variables.tf or main.tf symlinks. A user with permission to create or update ComponentDefinition objects can point variables.tf to /dev/zero through terraform.path, after which os.Stat and os.ReadFile follow the link and read an unbounded stream before ParseTerraformVariables or HCL parsing can reject the content. The read can exhaust memory, OOM-kill the cluster-wide vela-core controller, cause repeated Pod restarts, and pressure node memory when no effective container limit is configured. This issue is fixed in versions 1.9.14, 1.10.9, and 1.11.0-alpha.4.
Severity
8.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 20:21 UTC
CWE
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://github.com/kubevela/kubevela/security/adv… | x_refsource_CONFIRM |
| https://github.com/kubevela/kubevela/pull/7191 | x_refsource_MISC |
| https://github.com/kubevela/kubevela/pull/7192 | x_refsource_MISC |
| https://github.com/kubevela/kubevela/commit/65ded… | x_refsource_MISC |
| https://github.com/kubevela/kubevela/commit/7a4e5… | x_refsource_MISC |
| https://github.com/kubevela/kubevela/commit/f6a64… | x_refsource_MISC |
| https://github.com/kubevela/kubevela/releases/tag… | x_refsource_MISC |
| https://github.com/kubevela/kubevela/releases/tag… | x_refsource_MISC |
| https://github.com/kubevela/kubevela/releases/tag… | x_refsource_MISC |
Impacted products
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CVE-2026-55086 (GCVE-0-2026-55086)
Vulnerability from cvelistv5 – Published: 2026-08-19 19:35 – Updated: 2026-08-25 13:59
VLAI
EPSS
VEX
Title
Etherpad: Import/export use Math.random() for temp file paths; predictable paths on shared /tmp enable symlink-based file overwrite
Summary
Etherpad is a real-time collaborative editor. Prior to 3.1.0, src/node/handler/ImportHandler.ts and src/node/handler/ExportHandler.ts derive temporary filenames from Math.random() and place them in os.tmpdir(). On a host with a shared world-writable temporary directory, a local unprivileged attacker who predicts a filename can precreate a symbolic link to a file writable by the Etherpad process. Subsequent import or export operations can follow the link through fs.writeFile, fs.rename, or document-conversion output and overwrite the target with partially attacker-controlled content. This issue is fixed in version 3.1.0.
Severity
4.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 13:58 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ether/etherpad/security/adviso… | x_refsource_CONFIRM |
| https://github.com/ether/etherpad/pull/7784 | x_refsource_MISC |
| https://github.com/ether/etherpad/commit/8c6104c5… | x_refsource_MISC |
| https://github.com/ether/etherpad/releases/tag/v3.1.0 | x_refsource_MISC |
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CVE-2026-55074 (GCVE-0-2026-55074)
Vulnerability from cvelistv5 – Published: 2026-09-21 14:24 – Updated: 2026-09-21 15:44
VLAI
EPSS
VEX
Title
Ansible FreeBSD Jail Connection Plugin: Jail escape via symlink following in put_file (host-side root mv)
Summary
Ansible FreeBSD Jail Connection Plugin is an Ansible connection plugin for FreeBSD Jails via jexec. Through version 1.3.0, the jailexec connection plugin's put_file resolved a transfer's destination to a path on the jail host ( + ) and ran mkdir -p and mv there as root on the host. Those commands follow symbolic links, and the path was operated on outside the jail, so a symlink existing inside the jail was followed by the host-side, root-privileged mv. A party controlling content inside a managed jail (the jail's root, or any process able to create a symlink in a directory an Ansible task later writes to) can therefore cause an arbitrary root-owned write on the host, outside the jail — a full jail escape. Arbitrary root-owned host writes are readily escalated to host compromise (e.g. cron, rc.d, authorized_keys). Preconditions for this vulnerability are that the operator runs a copy/template/fetch-style task (anything using put_file) against the jail, and the attacker can place a symlink inside the jail at or above the task's destination before the transfer runs. This issue has been fixed in version 2.0.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 15:44 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/chofstede/ansible_jailexec/sec… | x_refsource_CONFIRM |
| https://github.com/chofstede/ansible_jailexec/pull/6 | x_refsource_MISC |
| https://github.com/chofstede/ansible_jailexec/com… | x_refsource_MISC |
| https://github.com/chofstede/ansible_jailexec/blo… | x_refsource_MISC |
| https://github.com/chofstede/ansible_jailexec/rel… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| chofstede | ansible_jailexec |
Affected:
< 2.0.0
|
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CVE-2026-54706 (GCVE-0-2026-54706)
Vulnerability from cvelistv5 – Published: 2026-07-31 16:30 – Updated: 2026-07-31 19:00
VLAI
EPSS
VEX
Title
OnionShare follows symlinks in shared directories, allowing unintended disclosure of local files
Summary
OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop follows symbolic links in cli/onionshare_cli/web/send_base_mode.py through SendBaseModeWeb.set_file_info() and stream_individual_file(), allowing remote recipients of Share or Website mode to read local files outside the selected directory. This issue is fixed in version 2.6.4.
Severity
4.8 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 18:54 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/onionshare/onionshare/security… | x_refsource_CONFIRM |
| https://github.com/onionshare/onionshare/commit/4… | x_refsource_MISC |
| https://github.com/onionshare/onionshare/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| onionshare | onionshare |
Affected:
< 2.6.4
|
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CVE-2026-54587 (GCVE-0-2026-54587)
Vulnerability from cvelistv5 – Published: 2026-09-17 16:56 – Updated: 2026-09-17 19:15
VLAI
EPSS
VEX
Title
mport directory asset installation is vulnerable to symlink and path traversal races
Summary
mport is the MidnightBSD Package Manager. Prior to 2.7.8, directory assets handled as ASSET_DIR or ASSET_DIR_OWNER_MODE in libmport/bundle_read_install_pkg.c used path-based mport_mkdirp(), ownership, and permission operations. A local attacker able to modify part of the target installation tree could use dot-dot traversal or substitute symlinks during privileged package installation, causing directory creation or attribute changes to affect attacker-selected paths outside the intended package directories. This issue is fixed in version 2.7.8.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 19:14 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/MidnightBSD/mport/security/adv… | x_refsource_CONFIRM |
| https://github.com/MidnightBSD/mport/pull/119 | x_refsource_MISC |
| https://github.com/MidnightBSD/mport/commit/a4fa9… | x_refsource_MISC |
| https://github.com/MidnightBSD/mport/releases/tag/2.7.8 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MidnightBSD | mport |
Affected:
< 2.7.8
|
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CVE-2026-54576 (GCVE-0-2026-54576)
Vulnerability from cvelistv5 – Published: 2026-09-17 16:58 – Updated: 2026-09-18 14:44
VLAI
EPSS
VEX
Title
mport package installation has symlink TOCTOU in chown and chmod handling
Summary
mport is the MidnightBSD Package Manager. Prior to 2.7.8, do_actual_install() in libmport/bundle_read_install_pkg.c used path-based lstat(), chown(), stat(), and chmod() operations while installing package files. A local attacker with write access to a target directory could replace a checked file with a symlink before privileged ownership or mode changes were applied, redirecting those changes to an attacker-selected path and compromising filesystem integrity or permissions. This issue is fixed in version 2.7.8.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 14:36 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/MidnightBSD/mport/security/adv… | x_refsource_CONFIRM |
| https://github.com/MidnightBSD/mport/pull/150 | x_refsource_MISC |
| https://github.com/MidnightBSD/mport/commit/4676a… | x_refsource_MISC |
| https://github.com/MidnightBSD/mport/releases/tag/2.7.8 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MidnightBSD | mport |
Affected:
< 2.7.8
|
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CVE-2026-54572 (GCVE-0-2026-54572)
Vulnerability from cvelistv5 – Published: 2026-07-14 21:37 – Updated: 2026-07-15 12:43
VLAI
EPSS
VEX
Title
rclone: Unvalidated symlink target in local `--links` — arbitrary file write from an untrusted remote
Summary
Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.74.4, with -l/--links, rclone serializes symlinks as .rclonelink text objects and recreates them on a local destination without validating the target, allowing an attacker-controlled remote to plant an escaping symlink and cause a following object write to land outside the destination with attacker-chosen contents. This issue is fixed in version 1.74.4.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 12:42 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/rclone/rclone/security/advisor… | x_refsource_CONFIRM |
| https://github.com/rclone/rclone/commit/1154afebe… | x_refsource_MISC |
| https://github.com/rclone/rclone/commit/874a804f5… | x_refsource_MISC |
| https://github.com/rclone/rclone/releases/tag/v1.74.4 | x_refsource_MISC |
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CVE-2026-54371 (GCVE-0-2026-54371)
Vulnerability from cvelistv5 – Published: 2026-06-29 12:39 – Updated: 2026-09-11 12:08 X_Open Source
VLAI
EPSS
VEX
Title
attr < 2.6.0 Symlink Traversal Privilege Escalation via getfattr/setfattr
Summary
attr before version 2.6.0 contains a symlink traversal vulnerability in the getfattr and setfattr utilities that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link during directory hierarchy traversal. Attackers who control a pathname component can redirect getfattr and setfattr operations to arbitrary files by substituting a symlink, leading to local privilege escalation when getfattr or setfattr is invoked by a privileged process over an attacker-controlled path.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-30 14:41 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
14 references
Impacted products
16 products
| Vendor | Product | Version | |
|---|---|---|---|
| attr project | attr |
Affected:
0 , < 2.6.0
(semver)
cpe:2.3:a:attr_project:attr:*:*:*:*:*:*:*:* |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:2.6.0-1.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:2.6.0-1.el8_10 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.6.0-1.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.19 |
Unaffected:
1788348522 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.19::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.19 |
Unaffected:
1788348571 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.19::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1788205779 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
2.6.0-9.1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1788880445 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1788880464 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1788880456 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1788765051 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1788880581 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-06-29 00:00
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CVE-2026-54369 (GCVE-0-2026-54369)
Vulnerability from cvelistv5 – Published: 2026-06-29 12:37 – Updated: 2026-09-14 12:04 X_Open Source Unsupported When Assigned
VLAI
EPSS
VEX
Title
acl < 2.4.0 Symlink Traversal Privilege Escalation via libacl Functions
Summary
acl before version 2.4.0 contains a symlink traversal vulnerability in the libacl pathname-based functions acl_get_file(), acl_set_file(), acl_extended_file(), and acl_delete_def_file() that allows local attackers to escalate privileges by replacing any pathname component with a symbolic link. Attackers who control any component of a pathname processed by a privileged caller can redirect ACL read or write operations to arbitrary files or directories, enabling unauthorized manipulation of access control lists and local privilege escalation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 13:56 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
20 references
Impacted products
22 products
| Vendor | Product | Version | |
|---|---|---|---|
| acl project | acl |
Affected:
0 , < 2.4.0
(semver)
cpe:2.3:a:acl_project:acl:*:*:*:*:*:*:*:* |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:2.4.0-1.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:2.4.0-0.el10_0.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:2.4.0-1.el8_10 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.4.0-1.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.22 |
Unaffected:
4.22.9.8.202608130832-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.22::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1784821670 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1784821750 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
2.4.0-0.1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Insights proxy 1.5 |
Unaffected:
1786433656 , < *
(rpm)
cpe:/a:redhat:insights_proxy:1.5::el9 |
|
| Red Hat | Red Hat OpenShift distributed tracing 3.10.2 |
Unaffected:
1785704636 , < *
(rpm)
cpe:/a:redhat:openshift_distributed_tracing:3.10::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784794818 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784794778 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784795112 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784794289 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1784795076 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787241211 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787135742 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787241260 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-06-29 00:00
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}
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CVE-2026-54352 (GCVE-0-2026-54352)
Vulnerability from cvelistv5 – Published: 2026-06-26 20:32 – Updated: 2026-06-27 03:12
VLAI
EPSS
VEX
Title
Budibase: Arbitrary file read by workspace-builder via PWA-zip symlink upload
Summary
Budibase is an open-source low-code platform. Prior to 3.39.9, `POST /api/pwa/process-zip` at packages/server/src/api/routes/static.ts:24 accepts a builder-uploaded .zip, extracts it with extract-zip@2.0.1 into a temp directory, then for each entry listed in icons.json validates the icon path, opens it, and streams the bytes into MinIO. The resulting object is served back via GET /api/assets/{appId}/pwa/{uuid}.png. extract-zip@2.0.1 preserves absolute symlink targets when restoring symlink entries. The icon-source validator at packages/server/src/api/controllers/static/index.ts:259-268 resolves the icon source string against baseDir (path.resolve), checks resolvedSrc.startsWith(baseDir + path.sep) against that string, and calls fs.existsSync(resolvedSrc) which follows symbolic links to confirm the target exists. None of the three calls reject symbolic-link entries. packages/backend-core/src/objectStore/objectStore.ts:302 then calls (await fsp.open(path)).createReadStream() on the resolved path. fsp.open follows the symlink, the target file's bytes stream into MinIO, and the response of the asset-fetch endpoint returns those bytes verbatim. Result: a workspace-level builder reads any file the server process can open. This vulnerability is fixed in 3.39.9.
Severity
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-27 03:11 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Budibase/budibase/security/adv… | x_refsource_CONFIRM |
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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-132: Symlink Attack
An adversary positions a symbolic link in such a manner that the targeted user or application accesses the link's endpoint, assuming that it is accessing a file with the link's name.
CAPEC-17: Using Malicious Files
An attack of this type exploits a system's configuration that allows an adversary to either directly access an executable file, for example through shell access; or in a possible worst case allows an adversary to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
CAPEC-35: Leverage Executable Code in Non-Executable Files
An attack of this type exploits a system's trust in configuration and resource files. When the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high.
CAPEC-76: Manipulating Web Input to File System Calls
An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.