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I. Basic Information for CVE-2020-5243
Vulnerability Information

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Vulnerability Title
Denial of Service in uap-core when processing crafted User-Agent strings
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
uap-core 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
uap-core 0.7.3之前版本中存在输入验证错误漏洞,该漏洞源于程序没有正确验证User-Agent字符串。远程攻击者可借助特制HTTP User-Agent标头请求利用该漏洞导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
ua-parseruap-core < 0.7.3 -
II. Public POCs for CVE-2020-5243
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III. Intelligence Information for CVE-2020-5243
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