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CVE-2018-16890

Quick assessment

Affected
The curl Project curl
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Haxx libcurl是瑞典Haxx公司的一筐开源的客户端URL传输库。该产品支持FTP、SFTP、TFTP和HTTP等协议。 Haxx libcurl 7.36.0版本至7.64.0版本中的‘lib / vauth / ntlm.c：ntlm_decode_type2_target’函数存在越界读取漏洞，该漏洞源于用于处理传入的NTLM Type-2消息的函数没有正确验证传入的数据。远程攻击者可利用该漏洞获取敏感信息或造成拒绝服务。

AI Predicted 5.9 Difficulty: Moderate EPSS 5.35% · P92

Possible ATT&CK Techniques 1 AI

T1021 · Remote Services
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I. Basic Information for CVE-2018-16890

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
libcurl versions from 7.36.0 to before 7.64.0 is vulnerable to a heap buffer out-of-bounds read. The function handling incoming NTLM type-2 messages (`lib/vauth/ntlm.c:ntlm_decode_type2_target`) does not validate incoming data correctly and is subject to an integer overflow vulnerability. Using that overflow, a malicious or broken NTLM server could trick libcurl to accept a bad length + offset combination that would lead to a buffer read out-of-bounds.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Haxx libcurl 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Haxx libcurl是瑞典Haxx公司的一筐开源的客户端URL传输库。该产品支持FTP、SFTP、TFTP和HTTP等协议。 Haxx libcurl 7.36.0版本至7.64.0版本中的‘lib / vauth / ntlm.c：ntlm_decode_type2_target’函数存在越界读取漏洞，该漏洞源于用于处理传入的NTLM Type-2消息的函数没有正确验证传入的数据。远程攻击者可利用该漏洞获取敏感信息或造成拒绝服务。
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

Vendor Product Affected Versions CPE Subscribe
The curl Project curl 7.64.0 -

II. Public POCs for CVE-2018-16890

# POC Description Source Link Shenlong Link
1 CVE-2018-16890 https://github.com/zjw88282740/CVE-2018-16890 POC Details
2 CVE-2018-16890 https://github.com/michelleamesquita/CVE-2018-16890 POC Details
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III. Intelligence Information for CVE-2018-16890

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Vendor Advisories for CVE-2018-16890 (8)

Mailing List Discussions for CVE-2018-16890 (1)

Other References for CVE-2018-16890 (1)

Same Patch Batch · The curl Project · 2019-02-06 · 3 CVEs total

CVE-2019-3822 Haxx libcurl 缓冲区错误漏洞
CVE-2019-3823 Haxx libcurl 缓冲区错误漏洞

IV. Related Vulnerabilities

Same product: curl
Same vendor: The curl Project
Same weakness: CWE-125

V. Comments for CVE-2018-16890

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