Lucene search

GitHub_MCVE-2020-5243

HistoryFeb 21, 2020 - 12:15 a.m.

CVE-2020-5243

2020-02-2100:15:10

CWE-1333

CWE-20

GitHub_M

web.nvd.nist.gov

109

cve-2020-5243

uap-core

denial of service attack

user-agent strings

redos

http request

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.3

Confidence

High

EPSS

0.003

Percentile

69.0%

JSON

uap-core before 0.7.3 is vulnerable to a denial of service attack when processing crafted User-Agent strings. Some regexes are vulnerable to regular expression denial of service (REDoS) due to overlapping capture groups. This allows remote attackers to overload a server by setting the User-Agent header in an HTTP(S) request to maliciously crafted long strings. This has been patched in uap-core 0.7.3.

Affected configurations

Nvd

Vulners

Node

uap-core_projectuap-coreRange<0.7.3node.js

VendorProductVersionCPE
uap-core_projectuap-core*cpe:2.3:a:uap-core_project:uap-core:*:*:*:*:*:node.js:*:*

Vendor	Product	Version	CPE
uap-core_project	uap-core	*	cpe:2.3:a:uap-core_project:uap-core::::::node.js::*

CNA Affected

[
  {
    "product": "uap-core",
    "vendor": "ua-parser",
    "versions": [
      {
        "status": "affected",
        "version": "< 0.7.3"
      }
    ]
  }
]