CWE-94
Allowed-with-ReviewImproper Control of Generation of Code ('Code Injection')
Abstraction: Base · Status: Draft
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
8350 vulnerabilities reference this CWE, most recent first.
GHSA-R3MQ-4WXP-P8VQ
Vulnerability from github – Published: 2026-05-15 21:31 – Updated: 2026-05-15 21:31Schlix CMS 2.2.6-6 contains a remote code execution vulnerability that allows authenticated attackers to execute arbitrary PHP code by uploading malicious extension packages through the block manager. Attackers can upload a crafted ZIP file containing PHP code in the packageinfo.inc file and trigger execution by accessing the About tab of the installed extension.
{
"affected": [],
"aliases": [
"CVE-2021-47964"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-15T19:16:56Z",
"severity": "HIGH"
},
"details": "Schlix CMS 2.2.6-6 contains a remote code execution vulnerability that allows authenticated attackers to execute arbitrary PHP code by uploading malicious extension packages through the block manager. Attackers can upload a crafted ZIP file containing PHP code in the packageinfo.inc file and trigger execution by accessing the About tab of the installed extension.",
"id": "GHSA-r3mq-4wxp-p8vq",
"modified": "2026-05-15T21:31:32Z",
"published": "2026-05-15T21:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47964"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/49838"
},
{
"type": "WEB",
"url": "https://www.schlix.com"
},
{
"type": "WEB",
"url": "https://www.schlix.com/downloads/schlix-cms/schlix-cms-v2.2.6-6.zip"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/schlix-cms-6-remote-code-execution-via-core-blockmanager"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-R3MR-4PWG-VMGC
Vulnerability from github – Published: 2022-05-01 23:27 – Updated: 2022-05-01 23:27Unspecified vulnerability in Microsoft Excel 2000 SP3 through 2007, Viewer 2003, Compatibility Pack, and Office 2004 for Mac allows user-assisted remote attackers to execute arbitrary code via crafted data validation records, aka "Excel Data Validation Record Vulnerability."
{
"affected": [],
"aliases": [
"CVE-2008-0111"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2008-03-11T23:44:00Z",
"severity": "HIGH"
},
"details": "Unspecified vulnerability in Microsoft Excel 2000 SP3 through 2007, Viewer 2003, Compatibility Pack, and Office 2004 for Mac allows user-assisted remote attackers to execute arbitrary code via crafted data validation records, aka \"Excel Data Validation Record Vulnerability.\"",
"id": "GHSA-r3mr-4pwg-vmgc",
"modified": "2022-05-01T23:27:40Z",
"published": "2022-05-01T23:27:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2008-0111"
},
{
"type": "WEB",
"url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-014"
},
{
"type": "WEB",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5114"
},
{
"type": "WEB",
"url": "http://marc.info/?l=bugtraq\u0026m=120585858807305\u0026w=2"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/28094"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id?1019582"
},
{
"type": "WEB",
"url": "http://www.us-cert.gov/cas/techalerts/TA08-071A.html"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2008/0846/references"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-R3RC-XGJR-HC9Q
Vulnerability from github – Published: 2022-05-17 01:16 – Updated: 2025-04-20 03:44The installation process for SOPlanning 1.32 and earlier allows remote authenticated users with a prepared database, and access to an existing database with a crafted name, or permissions to create arbitrary databases, or if PHP before 5.2 is being used, the configuration database is down, and smarty/templates_c is not writable to execute arbitrary php code via a crafted database name.
{
"affected": [],
"aliases": [
"CVE-2014-8677"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-08-31T22:29:00Z",
"severity": "MODERATE"
},
"details": "The installation process for SOPlanning 1.32 and earlier allows remote authenticated users with a prepared database, and access to an existing database with a crafted name, or permissions to create arbitrary databases, or if PHP before 5.2 is being used, the configuration database is down, and smarty/templates_c is not writable to execute arbitrary php code via a crafted database name.",
"id": "GHSA-r3rc-xgjr-hc9q",
"modified": "2025-04-20T03:44:15Z",
"published": "2022-05-17T01:16:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-8677"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/37604"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/132654/Simple-Online-Planning-Tool-1.3.2-XSS-SQL-Injection-Traversal.html"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2015/Jul/44"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/75726"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-R3X4-WR4H-PW33
Vulnerability from github – Published: 2019-10-21 21:58 – Updated: 2021-07-27 22:20Versions of safer-eval prior to 1.3.4 are vulnerable to Sandbox Escape leading to Remote Code Execution. A payload using constructor properties can escape the sandbox and execute arbitrary code. For example, evaluating he string console.constructor.constructor('return process')().env prints process.env to the console.
Recommendation
Upgrade to version 1.3.4 or later.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "safer-eval"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.3.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2019-10759"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": true,
"github_reviewed_at": "2019-10-17T17:06:35Z",
"nvd_published_at": "2019-10-15T15:15:00Z",
"severity": "CRITICAL"
},
"details": "Versions of `safer-eval` prior to 1.3.4 are vulnerable to Sandbox Escape leading to Remote Code Execution. A payload using constructor properties can escape the sandbox and execute arbitrary code. For example, evaluating he string `console.constructor.constructor(\u0027return process\u0027)().env` prints `process.env` to the console.\n\n\n## Recommendation\n\nUpgrade to version 1.3.4 or later.",
"id": "GHSA-r3x4-wr4h-pw33",
"modified": "2021-07-27T22:20:06Z",
"published": "2019-10-21T21:58:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10759"
},
{
"type": "WEB",
"url": "https://snyk.io/vuln/SNYK-JS-SAFEREVAL-173772"
},
{
"type": "WEB",
"url": "https://www.npmjs.com/advisories/1021"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Sandbox Breakout / Arbitrary Code Execution in safer-eval"
}
GHSA-R443-H767-83GP
Vulnerability from github – Published: 2022-05-02 06:10 – Updated: 2022-05-02 06:10UsbCharger.dll in the Energizer DUO USB battery charger software contains a backdoor that is implemented through the Arucer.dll file in the %WINDIR%\system32 directory, which allows remote attackers to download arbitrary programs onto a Windows PC, and execute these programs, via a request to TCP port 7777.
{
"affected": [],
"aliases": [
"CVE-2010-0103"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2010-03-10T20:13:00Z",
"severity": "HIGH"
},
"details": "UsbCharger.dll in the Energizer DUO USB battery charger software contains a backdoor that is implemented through the Arucer.dll file in the %WINDIR%\\system32 directory, which allows remote attackers to download arbitrary programs onto a Windows PC, and execute these programs, via a request to TCP port 7777.",
"id": "GHSA-r443-h767-83gp",
"modified": "2022-05-02T06:10:10Z",
"published": "2022-05-02T06:10:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2010-0103"
},
{
"type": "WEB",
"url": "http://www.kb.cert.org/vuls/id/154421"
},
{
"type": "WEB",
"url": "http://www.marketwatch.com/story/energizer-announces-duo-charger-and-usb-charger-software-problem-2010-03-05"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/38571"
},
{
"type": "WEB",
"url": "http://www.symantec.com/connect/blogs/trojan-found-usb-battery-charger-software"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-R44W-X6H3-GC9X
Vulnerability from github – Published: 2022-05-01 06:51 – Updated: 2025-04-03 04:29Multiple PHP remote file inclusion vulnerabilities in SQuery 4.5 and earlier, as used in products such as Autonomous LAN party (ALP), allow remote attackers to execute arbitrary PHP code via a URL in the libpath parameter to scripts in the lib directory including (1) ase.php, (2) devi.php, (3) doom3.php, (4) et.php, (5) flashpoint.php, (6) gameSpy.php, (7) gameSpy2.php, (8) gore.php, (9) gsvari.php, (10) halo.php, (11) hlife.php, (12) hlife2.php, (13) igi2.php, (14) main.lib.php, (15) netpanzer.php, (16) old_hlife.php, (17) pkill.php, (18) q2a.php, (19) q3a.php, (20) qworld.php, (21) rene.php, (22) rvbshld.php, (23) savage.php, (24) simracer.php, (25) sof1.php, (26) sof2.php, (27) unreal.php, (28) ut2004.php, and (29) vietcong.php. NOTE: the lib/armygame.php vector is already covered by CVE-2006-1610. The provenance of most of these additional vectors is unknown, although likely from post-disclosure analysis. NOTE: this only occurs when register_globals is disabled.
{
"affected": [],
"aliases": [
"CVE-2006-1688"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2006-04-11T00:02:00Z",
"severity": "HIGH"
},
"details": "Multiple PHP remote file inclusion vulnerabilities in SQuery 4.5 and earlier, as used in products such as Autonomous LAN party (ALP), allow remote attackers to execute arbitrary PHP code via a URL in the libpath parameter to scripts in the lib directory including (1) ase.php, (2) devi.php, (3) doom3.php, (4) et.php, (5) flashpoint.php, (6) gameSpy.php, (7) gameSpy2.php, (8) gore.php, (9) gsvari.php, (10) halo.php, (11) hlife.php, (12) hlife2.php, (13) igi2.php, (14) main.lib.php, (15) netpanzer.php, (16) old_hlife.php, (17) pkill.php, (18) q2a.php, (19) q3a.php, (20) qworld.php, (21) rene.php, (22) rvbshld.php, (23) savage.php, (24) simracer.php, (25) sof1.php, (26) sof2.php, (27) unreal.php, (28) ut2004.php, and (29) vietcong.php. NOTE: the lib/armygame.php vector is already covered by CVE-2006-1610. The provenance of most of these additional vectors is unknown, although likely from post-disclosure analysis. NOTE: this only occurs when register_globals is disabled.",
"id": "GHSA-r44w-x6h3-gc9x",
"modified": "2025-04-03T04:29:53Z",
"published": "2022-05-01T06:51:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2006-1688"
},
{
"type": "WEB",
"url": "http://liz0zim.no-ip.org/alp.txt"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/19482"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/19588"
},
{
"type": "WEB",
"url": "http://securityreason.com/securityalert/679"
},
{
"type": "WEB",
"url": "http://securitytracker.com/id?1015884"
},
{
"type": "WEB",
"url": "http://www.blogcu.com/Liz0ziM/431845"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24401"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24402"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24403"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24404"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24405"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24406"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24407"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24408"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24409"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24410"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24411"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24412"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24413"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24414"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24415"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24416"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24417"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24418"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24419"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24420"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24421"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24422"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24423"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24424"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24425"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24426"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24427"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24428"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/24429"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/430289/100/0/threaded"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/439874/100/0/threaded"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/441015/100/0/threaded"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/17434"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2006/1284"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-R45V-V35C-JGV9
Vulnerability from github – Published: 2026-03-25 18:31 – Updated: 2026-03-25 21:30Improper Control of Generation of Code ('Code Injection') vulnerability in jetmonsters JetFormBuilder jetformbuilder allows Code Injection.This issue affects JetFormBuilder: from n/a through <= 3.5.6.1.
{
"affected": [],
"aliases": [
"CVE-2026-32525"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-25T17:17:05Z",
"severity": "CRITICAL"
},
"details": "Improper Control of Generation of Code (\u0027Code Injection\u0027) vulnerability in jetmonsters JetFormBuilder jetformbuilder allows Code Injection.This issue affects JetFormBuilder: from n/a through \u003c= 3.5.6.1.",
"id": "GHSA-r45v-v35c-jgv9",
"modified": "2026-03-25T21:30:35Z",
"published": "2026-03-25T18:31:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32525"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Plugin/jetformbuilder/vulnerability/wordpress-jetformbuilder-plugin-3-5-6-1-remote-code-execution-rce-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-R46V-QH7R-F6VM
Vulnerability from github – Published: 2022-05-01 23:46 – Updated: 2022-05-01 23:46Multiple PHP remote file inclusion vulnerabilities Harris Yusuf Arifin Harris Wap Chat 1.0, when register_globals is enabled, allow remote attackers to execute arbitrary PHP code via a URL in the sysFileDir parameter to (1) eng.writeMsg.php, (2) eng.adCreate.php, (3) eng.adCreateSave.php, (4) eng.adDispByTypeOptions.php, (5) eng.createRoom.php, (6) eng.forward.php, (7) eng.pageLogout.php, (8) eng.resultMember.php, (9) eng.roomDeleteConfirm.php, (10) eng.saveNewRoom.php, and (11) eng.searchMember.php in src/.
{
"affected": [],
"aliases": [
"CVE-2008-2074"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2008-05-05T16:20:00Z",
"severity": "HIGH"
},
"details": "Multiple PHP remote file inclusion vulnerabilities Harris Yusuf Arifin Harris Wap Chat 1.0, when register_globals is enabled, allow remote attackers to execute arbitrary PHP code via a URL in the sysFileDir parameter to (1) eng.writeMsg.php, (2) eng.adCreate.php, (3) eng.adCreateSave.php, (4) eng.adDispByTypeOptions.php, (5) eng.createRoom.php, (6) eng.forward.php, (7) eng.pageLogout.php, (8) eng.resultMember.php, (9) eng.roomDeleteConfirm.php, (10) eng.saveNewRoom.php, and (11) eng.searchMember.php in src/.",
"id": "GHSA-r46v-qh7r-f6vm",
"modified": "2022-05-01T23:46:15Z",
"published": "2022-05-01T23:46:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2008-2074"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/42112"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/5525"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/30022"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/28995"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-R486-5WGV-7GJH
Vulnerability from github – Published: 2024-05-17 09:31 – Updated: 2024-05-17 09:31Improper Control of Generation of Code ('Code Injection') vulnerability in WPCustomify Customify Site Library allows Code Injection.This issue affects Customify Site Library: from n/a through 0.0.9.
{
"affected": [],
"aliases": [
"CVE-2024-33644"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-17T09:15:42Z",
"severity": "CRITICAL"
},
"details": "Improper Control of Generation of Code (\u0027Code Injection\u0027) vulnerability in WPCustomify Customify Site Library allows Code Injection.This issue affects Customify Site Library: from n/a through 0.0.9.",
"id": "GHSA-r486-5wgv-7gjh",
"modified": "2024-05-17T09:31:03Z",
"published": "2024-05-17T09:31:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-33644"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/vulnerability/customify-sites/wordpress-customify-site-library-plugin-0-0-9-remote-code-execution-rce-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-R4F4-P3XM-CMMG
Vulnerability from github – Published: 2022-05-14 00:55 – Updated: 2022-05-14 00:55displayServiceStatus.php in Centreon 2.5.1 and Centreon Enterprise Server 2.2 (fixed in Centreon web 2.5.3) allows remote attackers to execute arbitrary commands via shell metacharacters in the (1) session_id or (2) template_id parameter, related to the command_line variable.
{
"affected": [],
"aliases": [
"CVE-2014-3829"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-10-23T01:55:00Z",
"severity": "HIGH"
},
"details": "displayServiceStatus.php in Centreon 2.5.1 and Centreon Enterprise Server 2.2 (fixed in Centreon web 2.5.3) allows remote attackers to execute arbitrary commands via shell metacharacters in the (1) session_id or (2) template_id parameter, related to the command_line variable.",
"id": "GHSA-r4f4-p3xm-cmmg",
"modified": "2022-05-14T00:55:27Z",
"published": "2022-05-14T00:55:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-3829"
},
{
"type": "WEB",
"url": "https://github.com/centreon/centreon/commit/cc2109804dd69057cb209037113796ec5ffdce90#diff-e328097503b14fbb117e0db798aefcde"
},
{
"type": "WEB",
"url": "https://documentation.centreon.com/docs/centreon/en/latest/release_notes/centreon-2.5/centreon-2.5.3.html"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2014/Oct/78"
},
{
"type": "WEB",
"url": "http://www.kb.cert.org/vuls/id/298796"
}
],
"schema_version": "1.4.0",
"severity": []
}
Mitigation
Strategy: Refactoring
Refactor your program so that you do not have to dynamically generate code.
Mitigation
- Run your code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which code can be executed by your product.
- Examples include the Unix chroot jail and AppArmor. In general, managed code may provide some protection.
- This may not be a feasible solution, and it only limits the impact to the operating system; the rest of your application may still be subject to compromise.
- Be careful to avoid CWE-243 and other weaknesses related to jails.
Mitigation MIT-5
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
- To reduce the likelihood of code injection, use stringent allowlists that limit which constructs are allowed. If you are dynamically constructing code that invokes a function, then verifying that the input is alphanumeric might be insufficient. An attacker might still be able to reference a dangerous function that you did not intend to allow, such as system(), exec(), or exit().
Mitigation
Use dynamic tools and techniques that interact with the product using large test suites with many diverse inputs, such as fuzz testing (fuzzing), robustness testing, and fault injection. The product's operation may slow down, but it should not become unstable, crash, or generate incorrect results.
Mitigation MIT-32
Strategy: Compilation or Build Hardening
Run the code in an environment that performs automatic taint propagation and prevents any command execution that uses tainted variables, such as Perl's "-T" switch. This will force the program to perform validation steps that remove the taint, although you must be careful to correctly validate your inputs so that you do not accidentally mark dangerous inputs as untainted (see CWE-183 and CWE-184).
Mitigation MIT-32
Strategy: Environment Hardening
Run the code in an environment that performs automatic taint propagation and prevents any command execution that uses tainted variables, such as Perl's "-T" switch. This will force the program to perform validation steps that remove the taint, although you must be careful to correctly validate your inputs so that you do not accidentally mark dangerous inputs as untainted (see CWE-183 and CWE-184).
Mitigation
For Python programs, it is frequently encouraged to use the ast.literal_eval() function instead of eval, since it is intentionally designed to avoid executing code. However, an adversary could still cause excessive memory or stack consumption via deeply nested structures [REF-1372], so the python documentation discourages use of ast.literal_eval() on untrusted data [REF-1373].
CAPEC-242: Code Injection
An adversary exploits a weakness in input validation on the target to inject new code into that which is currently executing. This differs from code inclusion in that code inclusion involves the addition or replacement of a reference to a code file, which is subsequently loaded by the target and used as part of the code of some application.
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-77: Manipulating User-Controlled Variables
This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An adversary can override variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the adversary can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.