CVE Vulnerability

CVE-2020-5243

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/ua-parser/uap-core/commit/0afd61ed85396a3b5316f18bfd1edfaadf8e88e1 Patch Third Party Advisory
https://github.com/ua-parser/uap-core/security/advisories/GHSA-cmcx-xhr8-3w9p Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:uap-core_project:uap-core:*:*:*:*:*:*:*:*
Information

Published : 2020-02-21 12:15

Updated : 2020-02-25 07:44

NVD link : CVE-2020-5243

Mitre link : CVE-2020-5243

Products Affected
No products.
CWE
CWE-407