ghsa-p2pf-g8cq-3gq5
Vulnerability from github
Published
2023-03-01 20:37
Modified
2024-05-20 21:48
Severity ?
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
teler-waf contains detection rule bypass via Entities payload
Details

Description

teler-waf is a Go HTTP middleware that provides teler IDS functionality to protect against web-based attacks. teler-waf prior to version v0.2.0 is vulnerable to a bypass attack when a specific case-sensitive hex entities payload with special characters such as CR/LF and horizontal tab is used. This vulnerability allows an attacker to execute arbitrary JavaScript code on the victim's browser and compromise the security of the web application.

Impact

An attacker can exploit this vulnerability to bypass common web attack threat rules in teler-waf and launch cross-site scripting (XSS) attacks. The attacker can execute arbitrary JavaScript code on the victim's browser and steal sensitive information, such as login credentials and session tokens, or take control of the victim's browser and perform malicious actions.

Patches

Version v0.2.0 includes a patch for this vulnerability.

Workarounds

We advised updating their installations to version v0.2.0 and frontwards immediately.

Show details on source website

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/kitabisa/teler-waf"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-26047"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-692",
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-03-01T20:37:23Z",
    "nvd_published_at": "2023-03-03T23:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Description\n\nteler-waf is a Go HTTP middleware that provides teler IDS functionality to protect against web-based attacks. teler-waf prior to version v0.2.0 is vulnerable to a bypass attack when a specific case-sensitive hex entities payload with special characters such as CR/LF and horizontal tab is used. This vulnerability allows an attacker to execute arbitrary JavaScript code on the victim\u0027s browser and compromise the security of the web application.\n\n### Impact\n\nAn attacker can exploit this vulnerability to bypass common web attack threat rules in teler-waf and launch cross-site scripting (XSS) attacks. The attacker can execute arbitrary JavaScript code on the victim\u0027s browser and steal sensitive information, such as login credentials and session tokens, or take control of the victim\u0027s browser and perform malicious actions.\n\n### Patches\n\nVersion [v0.2.0](https://github.com/kitabisa/teler-waf/releases/tag/v0.2.0) includes a patch for this vulnerability.\n\n### Workarounds\n\nWe advised updating their installations to version v0.2.0 and frontwards immediately.",
  "id": "GHSA-p2pf-g8cq-3gq5",
  "modified": "2024-05-20T21:48:31Z",
  "published": "2023-03-01T20:37:23Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/kitabisa/teler-waf/security/advisories/GHSA-p2pf-g8cq-3gq5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-26047"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dwisiswant0/cwa-filter-rules/commit/d818d1645832d1a02cd210c7680e692d2bf4313b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kitabisa/teler-waf/commit/6e1b0e19b8adc1bbc3513a986025d4adf88d59f8"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/kitabisa/teler-waf"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kitabisa/teler-waf/compare/v0.1.2...v0.2.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kitabisa/teler-waf/releases/tag/v0.2.0"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2023-1600"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "teler-waf contains detection rule bypass via Entities payload"
}


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