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FKIE_CVE-2021-28485

Vulnerability from fkie_nvd - Published: 2023-09-14 15:15 - Updated: 2026-06-17 03:46
Severity
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
In Ericsson Mobile Switching Center Server (MSC-S) before IS 3.1 CP22, the SIS web application allows relative path traversal via a specific parameter in the https request after authentication, which allows access to files on the system that are not intended to be accessible via the web application.
References
cve@mitre.orghttps://www.ericsson.com/en/about-us/security/psirtVendor Advisory
cve@mitre.orghttps://www.gruppotim.it/it/footer/red-team.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.ericsson.com/en/about-us/security/psirtVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.gruppotim.it/it/footer/red-team.htmlThird Party Advisory
Impacted products
Vendor Product Version
ericsson mobile_switching_center_server_bc_18a_firmware *
ericsson mobile_switching_center_server_bc_18a -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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      ],
      "source": "cve@mitre.org"
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  ],
  "configurations": [
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              "versionEndExcluding": "is_3.1_cp22",
              "versionStartIncluding": "is_3.1",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Ericsson Mobile Switching Center Server (MSC-S) before IS 3.1 CP22, the SIS web application allows relative path traversal via a specific parameter in the https request after authentication, which allows access to files on the system that are not intended to be accessible via the web application."
    },
    {
      "lang": "es",
      "value": "En Ericsson Mobile Switching Center Server (MSC-S) anterior a IS 3.1 CP22, la aplicaci\u00f3n web SIS permite el Path Traversal a trav\u00e9s de un par\u00e1metro espec\u00edfico en la solicitud https despu\u00e9s de la autenticaci\u00f3n, lo que permite el acceso a archivos en el sistema a los que no se pretende que sean accesibles a trav\u00e9s de la aplicaci\u00f3n web."
    }
  ],
  "id": "CVE-2021-28485",
  "lastModified": "2026-06-17T03:46:27.053",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
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        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
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        "ssvcData": {
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          "options": [
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              "exploitation": "none"
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            {
              "automatable": "no"
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            {
              "technicalImpact": "partial"
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          "role": "CISA Coordinator",
          "timestamp": "2024-09-25T19:56:28.238235Z",
          "version": "2.0.3"
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  "published": "2023-09-14T15:15:07.827",
  "references": [
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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