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SnykCVE-2021-23384

HistoryMay 17, 2021 - 6:15 p.m.

CVE-2021-23384

2021-05-1718:15:07

CWE-601

snyk

web.nvd.nist.gov

cve-2021-23384

package vulnerability

open redirect

url manipulation

nvd

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

AI Score

5.6

Confidence

High

EPSS

0.001

Percentile

40.7%

JSON

The package koa-remove-trailing-slashes before 2.0.2 are vulnerable to Open Redirect via the use of trailing double slashes in the URL when accessing the vulnerable endpoint (such as https://example.com//attacker.example/). The vulnerable code is in index.js::removeTrailingSlashes(), as the web server uses relative URLs instead of absolute URLs.

Affected configurations

Nvd

Node

koa-remove-trailing-slashes_projectkoa-remove-trailing-slashesRange<2.0.2node.js

VendorProductVersionCPE
koa-remove-trailing-slashes_projectkoa-remove-trailing-slashes*cpe:2.3:a:koa-remove-trailing-slashes_project:koa-remove-trailing-slashes:*:*:*:*:*:node.js:*:*

Vendor	Product	Version	CPE
koa-remove-trailing-slashes_project	koa-remove-trailing-slashes	*	cpe:2.3:a:koa-remove-trailing-slashes_project:koa-remove-trailing-slashes::::::node.js::*

CNA Affected

[
  {
    "product": "koa-remove-trailing-slashes",
    "vendor": "n/a",
    "versions": [
      {
        "lessThan": "2.0.2",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

github.com/vgno/koa-remove-trailing-slashes/blame/6a01ba8fd019bd3ece44879c553037ad96ba7d47/index.js%23L31

snyk.io/vuln/SNYK-JS-KOAREMOVETRAILINGSLASHES-1085708

CVSS2

5.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

AI Score

5.6

Confidence

High

EPSS

0.001

Percentile

40.7%

JSON

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