CVE-2021-25329 (GCVE-0-2021-25329)

Vulnerability from cvelistv5 – Published: 2021-03-01 12:00 – Updated: 2025-02-13 16:27
VLAI
Title
Incomplete fix for CVE-2020-9484
Summary
The fix for CVE-2020-9484 was incomplete. When using Apache Tomcat 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41, 8.5.0 to 8.5.61 or 7.0.0. to 7.0.107 with a configuration edge case that was highly unlikely to be used, the Tomcat instance was still vulnerable to CVE-2020-9494. Note that both the previously published prerequisites for CVE-2020-9484 and the previously published mitigations for CVE-2020-9484 also apply to this issue.
Severity
No CVSS data available.
CWE
  • Remote code execution via session persistence
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: Apache Tomcat 10 , < 10.0.0 (custom)
Affected: Apache Tomcat 9 , < 9.0.41 (custom)
Affected: Apache Tomcat 8.5 , < 8.5.61 (custom)
Affected: Apache Tomcat 7 , < 7.0.107 (custom)
Create a notification for this product.
Credits
This issue was identified by Trung Pham of Viettel Cyber Security.
Show details on NVD website
To clipboard 

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              "name": "[tomcat-users] 20210702 Re: CVE-2021-25329, was Re: Most recent security-related update to 8.5",
              "refsource": "MLIST",
              "url": "https://lists.apache.org/thread.html/r11ce01e8a4c7269b88f88212f21830edf73558997ac7744f37769b77@%3Cusers.tomcat.apache.org%3E"
            },
            {
              "name": "https://www.oracle.com//security-alerts/cpujul2021.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com//security-alerts/cpujul2021.html"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20210409-0002/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20210409-0002/"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuoct2021.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpujan2022.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpujan2022.html"
            },
            {
              "name": "GLSA-202208-34",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202208-34"
            }
          ]
        },
        "source": {
          "discovery": "UNKNOWN"
        }
      }
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    "assignerShortName": "apache",
    "cveId": "CVE-2021-25329",
    "datePublished": "2021-03-01T12:00:20.000Z",
    "dateReserved": "2021-01-19T00:00:00.000Z",
    "dateUpdated": "2025-02-13T16:27:48.719Z",
    "state": "PUBLISHED"
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  "vulnerability-lookup:meta": {
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      "date": "2026-05-29",
      "epss": "0.00802",
      "percentile": "0.74384"
    },
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  }
}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.