gsd-2021-31805
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.
Aliases
Aliases
CVE-2021-31805


To clipboard 

{
   GSD: {
      alias: "CVE-2021-31805",
      description: "The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.",
      id: "GSD-2021-31805",
      references: [
         "https://www.suse.com/security/cve/CVE-2021-31805.html",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-31805",
         ],
         details: "The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.",
         id: "GSD-2021-31805",
         modified: "2023-12-13T01:23:13.099023Z",
         schema_version: "1.4.0",
      },
   },
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            ID: "CVE-2021-31805",
            STATE: "PUBLIC",
            TITLE: "Forced OGNL evaluation, when evaluated on raw not validated user input in tag attributes, may lead to RCE.",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "Apache Struts",
                              version: {
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                                    {
                                       version_value: "2.0.0 to 2.5.29",
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                                 ],
                              },
                           },
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                     },
                     vendor_name: "Apache Software Foundation",
                  },
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         },
         credit: [
            {
               lang: "eng",
               value: "Apache Struts would like to thank Chris McCown for reporting this issue!",
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            {
               lang: "eng",
               value: "Avoid using forced OGNL evaluation on untrusted user input, and/or upgrade to Struts 2.5.30 which checks if expression evaluation won’t lead to the double evaluation.\n\nPlease read our Security Bulletin S2-062 for more details.",
            },
         ],
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               affected_range: "[2.0.0,2.5.29]",
               affected_versions: "All versions starting from 2.0.0 up to 2.5.29",
               cvss_v2: "AV:N/AC:L/Au:N/C:P/I:P/A:P",
               cvss_v3: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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               date: "2022-07-25",
               description: "The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.",
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               identifier: "CVE-2021-31805",
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               package_slug: "maven/org.apache.struts/struts2-config-browser-plugin",
               pubdate: "2022-04-12",
               solution: "Upgrade to version 2.5.30 or above.",
               title: "Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')",
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               description: "The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.",
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               package_slug: "maven/org.apache.struts/struts2-convention-plugin",
               pubdate: "2022-04-12",
               solution: "Upgrade to version 2.5.30 or above.",
               title: "Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')",
               urls: [
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               description: "The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.",
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               package_slug: "maven/org.apache.struts/struts2-core",
               pubdate: "2022-04-12",
               solution: "Upgrade to version 2.5.30 or above.",
               title: "Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')",
               urls: [
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               description: "The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.",
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               package_slug: "maven/org.apache.struts/struts2-rest-plugin",
               pubdate: "2022-04-12",
               solution: "Upgrade to version 2.5.30 or above.",
               title: "Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')",
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               package_slug: "maven/org.apache.struts/struts2-struts1-plugin",
               pubdate: "2022-04-12",
               solution: "Unfortunately, there is no solution available yet.",
               title: "Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')",
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               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "NETWORK",
                  authentication: "NONE",
                  availabilityImpact: "PARTIAL",
                  baseScore: 7.5,
                  confidentialityImpact: "PARTIAL",
                  integrityImpact: "PARTIAL",
                  vectorString: "AV:N/AC:L/Au:N/C:P/I:P/A:P",
                  version: "2.0",
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                  baseSeverity: "CRITICAL",
                  confidentialityImpact: "HIGH",
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                  privilegesRequired: "NONE",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
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               exploitabilityScore: 3.9,
               impactScore: 5.9,
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         },
         lastModifiedDate: "2022-07-25T18:15Z",
         publishedDate: "2022-04-12T16:15Z",
      },
   },
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
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