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cve[email protected]CVE-2017-0904
HistoryNov 13, 2017 - 5:29 p.m.

CVE-2017-0904

2017-11-1317:29:00
CWE-755
CWE-242
web.nvd.nist.gov
48
private_address_check
ruby gem
vulnerability
bypass
os-dependent
resolv.getaddresses
security measures
blacklist
server-side request forgery
cve-2017-0904

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

8 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

72.8%

The private_address_check ruby gem before 0.4.0 is vulnerable to a bypass due to use of Ruby’s Resolv.getaddresses method, which is OS-dependent and should not be relied upon for security measures, such as when used to blacklist private network addresses to prevent server-side request forgery.

Affected configurations

NVD
Node
private_address_check_projectprivate_address_checkRange<0.4.0ruby

CNA Affected

[
  {
    "product": "private_address_check ruby gem",
    "vendor": "jtdowney",
    "versions": [
      {
        "status": "affected",
        "version": "Versions before 0.4.0"
      }
    ]
  }
]

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

8 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

72.8%