CVE-2012-2143
Quick assessment
Affected
n/a n/a
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
libcrypt是ANSI C加密库。 libcrypt中存在密码加密漏洞，该漏洞源于在处理某些包含无法用7位ASCII代表的字符时crypt()函数中使用的DES实现中存在的编程错误。攻击者可利用该漏洞绕过使用受影响crypt()函数加密其用户密码的应用验证机制，当输入包含仅最高有效位设置了(0x80)的字符时，该字符和其后字符都会被忽略。系统不使用crypt()或仅使用crypt()处理7位ASCII的不会受到影响。
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I. Basic Information for CVE-2012-2143
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The crypt_des (aka DES-based crypt) function in FreeBSD before 9.0-RELEASE-p2, as used in PHP, PostgreSQL, and other products, does not process the complete cleartext password if this password contains a 0x80 character, which makes it easier for context-dependent attackers to obtain access via an authentication attempt with an initial substring of the intended password, as demonstrated by a Unicode password.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
libcrypt ‘crypt()’ 密码加密漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libcrypt是ANSI C加密库。 libcrypt中存在密码加密漏洞，该漏洞源于在处理某些包含无法用7位ASCII代表的字符时crypt()函数中使用的DES实现中存在的编程错误。攻击者可利用该漏洞绕过使用受影响crypt()函数加密其用户密码的应用验证机制，当输入包含仅最高有效位设置了(0x80)的字符时，该字符和其后字符都会被忽略。系统不使用crypt()或仅使用crypt()处理7位ASCII的不会受到影响。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2012-2143
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2012-2143 (9)
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https://bugzilla.redhat.com/show_bug.cgi?id=816956 x_refsource_CONFIRM
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http://support.apple.com/kb/HT5501 x_refsource_CONFIRM
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http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705 x_refsource_CONFIRM
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http://www.mandriva.com/security/advisories?name=MDVSA-2012:092 vendor-advisory x_refsource_MANDRIVA
Mailing List Discussions for CVE-2012-2143 (8)
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http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082292.html vendor-advisory x_refsource_FEDORA
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http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082258.html vendor-advisory x_refsource_FEDORA
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http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082294.html vendor-advisory x_refsource_FEDORA
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http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00003.html vendor-advisory x_refsource_SUSE
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🔗 http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html vendor-advisory x_refsource_APPLE
Other References for CVE-2012-2143 (8)
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http://www.postgresql.org/docs/9.1/static/release-9-1-4.html x_refsource_CONFIRM
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🔗 http://www.postgresql.org/docs/8.4/static/release-8-4-12.html x_refsource_CONFIRM
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http://www.postgresql.org/support/security/ x_refsource_CONFIRM
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http://www.postgresql.org/docs/8.3/static/release-8-3-19.html x_refsource_CONFIRM
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http://www.postgresql.org/docs/9.0/static/release-9-0-8.html x_refsource_CONFIRM
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http://security.freebsd.org/advisories/FreeBSD-SA-12:02.crypt.asc vendor-advisory x_refsource_FREEBSD
Same Patch Batch · n/a · 2012-07-05 · 20 CVEs total
| CVE-2012-2281 | RSA Access Manager Server 会话重放安全绕过漏洞 | |
| CVE-2012-3847 | Invensys InTouch/Wonderware Application Server 拒绝服务漏洞 | |
| CVE-2012-3007 | Invensys System Platform软件套件缓冲区溢出漏洞 | |
| CVE-2012-2560 | WellinTech KingView 路径遍历漏洞 | |
| CVE-2012-2559 | WellinTech KingHistorian 内存破坏漏洞 | |
| CVE-2012-2516 | 多个GE Proficy 缓冲区溢出漏洞和命令注入漏洞 | |
| CVE-2012-2515 | 多个GE Proficy 缓冲区溢出漏洞和命令注入漏洞 | |
| CVE-2012-1832 | WellinTech KingView 内存破坏漏洞 | |
| CVE-2012-1831 | WellinTech KingView 缓冲区溢出漏洞 | |
| CVE-2012-1830 | WellinTech KingView 缓冲区溢出漏洞 | |
| CVE-2012-2018 | HP Network Node Manager i 跨站脚本漏洞 | |
| CVE-2012-0410 | Novell GroupWise WebAccess “User.interface”文件泄露漏洞 | |
| CVE-2012-2641 | zenphoto 跨站脚本漏洞 | |
| CVE-2012-2640 | NEC BIGLOBE Yome Collection应用程序安全漏洞 | |
| CVE-2012-0303 | Symantec Message Filter 跨站请求伪造漏洞 | |
| CVE-2012-0302 | Symantec Message Filter 跨站脚本漏洞 | |
| CVE-2012-0301 | Symantec Message Filter 会话固定漏洞 | |
| CVE-2012-0300 | Symantec Message Filter 信息泄露漏洞 | |
| CVE-2012-3585 | IrfanView Formats PlugIn ‘jpeg_ls.dll’缓冲区溢出漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2012-2143
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