漏洞信息
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Vulnerability Title
Wrong interpretation of ACL ranges
Vulnerability Description
When ranges are used for access control (i.e. of the form 1.2.3.4-1.2.3.25), because NSD wrongly compares the IP address with the range on little endian systems, IPs that were meant to be allowed may be denied, and, IPs that were meant to be denied access could be allowed. An IPv4 address is compared with IPv4 ranges as unsigned 32 bit numbers directly with the endianness of the host, but the values to compare are in network byte order (big-endian). With IPv6 addresses the comparison is done in 4 times a unsigned 32 bit number comparison, again with the endianness of the host where all values are actually in network bye order.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Vulnerability Type
访问控制不恰当
Vulnerability Title
NLnet Labs NSD 权限许可和访问控制问题漏洞
Vulnerability Description
NLnet Labs NSD是荷兰NLnet Labs组织的一款DNS服务器软件。 NLnet Labs NSD 3.0.0版本至4.15.1之前版本存在安全漏洞,该漏洞源于错误比较IP地址与访问控制范围,可能导致访问控制被绕过,允许本应拒绝的IP地址访问。
CVSS Information
N/A
Vulnerability Type
N/A