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cveGitHub_MCVE-2021-43795
HistoryDec 02, 2021 - 6:15 p.m.

CVE-2021-43795

2021-12-0218:15:08
CWE-22
GitHub_M
web.nvd.nist.gov
49
armeria
file system access
http path
vulnerability
cve-2021-43795

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.002

Percentile

56.0%

Armeria is an open source microservice framework. In affected versions an attacker can access an Armeria server’s local file system beyond its restricted directory by sending an HTTP request whose path contains %2F (encoded /), such as /files/..%2Fsecrets.txt, bypassing Armeria’s path validation logic. Armeria 1.13.4 or above contains the hardened path validation logic that handles %2F properly. This vulnerability can be worked around by inserting a decorator that performs an additional validation on the request path.

Affected configurations

Nvd
Vulners
Node
linecorparmeriaRange<1.13.4
VendorProductVersionCPE
linecorparmeria*cpe:2.3:a:linecorp:armeria:*:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "armeria",
    "vendor": "line",
    "versions": [
      {
        "status": "affected",
        "version": "< 1.13.4"
      }
    ]
  }
]

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.002

Percentile

56.0%