CVE-2017-15105
Quick assessment
Affected
NLnet Labs unbound
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Unbound是荷兰NLnet实验室负责维护的一套基于C语言的开源递归式DNS服务器软件。 Unbound 1.6.8之前的版本中存在安全漏洞，该漏洞源于程序没有正确验证通配符记录。攻击者可利用该漏洞造成设备显示已存在的通配符记录并不存在或显示无数据。
Possible ATT&CK Techniques 1 AI
T1115 · Clipboard Data
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I. Basic Information for CVE-2017-15105
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不恰当实现的标准安全检查
Source: CVE Program / CVE List V5
Vulnerability Title
Unbound 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Unbound是荷兰NLnet实验室负责维护的一套基于C语言的开源递归式DNS服务器软件。 Unbound 1.6.8之前的版本中存在安全漏洞，该漏洞源于程序没有正确验证通配符记录。攻击者可利用该漏洞造成设备显示已存在的通配符记录并不存在或显示无数据。
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| NLnet Labs | unbound | before 1.6.8 | - |
|
II. Public POCs for CVE-2017-15105
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2017-15105 (2)
Mailing List Discussions for CVE-2017-15105 (1)
Other References for CVE-2017-15105 (1)
-
https://unbound.net/downloads/CVE-2017-15105.txt x_refsource_CONFIRM
IV. Related Vulnerabilities
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Possible heap buffer overflow during DNSSEC canonicalization
Same vendor: NLnet Labs
-
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CNAME synthesis could lead to heap corruption -
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Heap buffer overflow and possible Remote Code Execution when -
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Same weakness: CWE-358
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V. Comments for CVE-2017-15105
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