CVE-2005-1600
CVSS7.5
发布时间 :2005-05-16 00:00:00
修订时间 :2008-09-05 16:49:34
NMCO    

[原文]A "mathematical flaw" in the implementation of the El Gamal signature algorithm for LibTomCrypt 1.0 to 1.0.2 allows attackers to generate valid signatures without having the private key.


[CNNVD]LibTomCrypt El Gamal实施缺陷有效签名生成漏洞(CNNVD-200505-1055)

        LibTomCrypt 1.0至1.0.2版中使用EI Gamal签名算法时存在"数学上的缺陷",攻击者可以不需要私钥就可以生成有效的签名。

- CVSS (基础分值)

CVSS分值: 7.5 [严重(HIGH)]
机密性影响: PARTIAL [很可能造成信息泄露]
完整性影响: PARTIAL [可能会导致系统文件被修改]
可用性影响: PARTIAL [可能会导致性能下降或中断资源访问]
攻击复杂度: LOW [漏洞利用没有访问限制 ]
攻击向量: [--]
身份认证: NONE [漏洞利用无需身份认证]

- CPE (受影响的平台与产品)

cpe:/a:libtomcrypt:libtomcrypt:1.0
cpe:/a:libtomcrypt:libtomcrypt:1.0.1
cpe:/a:libtomcrypt:libtomcrypt:1.0.2

- OVAL (用于检测的技术细节)

未找到相关OVAL定义

- 官方数据库链接

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-1600
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2005-1600
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200505-1055
(官方数据源) CNNVD

- 其它链接及资源

http://xforce.iss.net/xforce/xfdb/20455
(UNKNOWN)  XF  libtomcrypt-signature-security-bypass(20455)
http://www.securityfocus.org/archive/1/397649
(UNKNOWN)  BUGTRAQ  20050503 Secure Science Corporation Advisory CSA-056
http://www.securityfocus.com/bid/13473
(UNKNOWN)  BID  13473
http://www.securiteam.com/unixfocus/5JP092AFPG.html
(UNKNOWN)  MISC  http://www.securiteam.com/unixfocus/5JP092AFPG.html
http://www.osvdb.org/16188
(UNKNOWN)  OSVDB  16188
http://secunia.com/advisories/15233
(UNKNOWN)  SECUNIA  15233

- 漏洞信息

LibTomCrypt El Gamal实施缺陷有效签名生成漏洞
高危 设计错误
2005-05-16 00:00:00 2005-10-20 00:00:00
远程※本地  
        LibTomCrypt 1.0至1.0.2版中使用EI Gamal签名算法时存在"数学上的缺陷",攻击者可以不需要私钥就可以生成有效的签名。

- 公告与补丁

        暂无数据

- 漏洞信息

16188
LibTomCrypt ECC Signature Scheme Weakness
Remote / Network Access Cryptographic
Loss of Integrity Patch / RCS
Exploit Unknown Vendor Verified

- 漏洞描述

LibTomCrypt contains a flaw in the implementation of the El Gamal signature algorithm. The issue is due to a mathematical error within the El Gamal signature algorithm. This flaw may allow a remote attacker to create valid signatures and sign arbitrary messages without the private key via an application that uses the ECC (Elliptic Curve Cryptosystem) signature scheme routines.

- 时间线

2005-05-02 2005-05-01
Unknow 2005-05-07

- 解决方案

It has been reported that this issue has been fixed. Upgrade to version 1.03, or higher, to address this vulnerability.

- 相关参考

- 漏洞作者

Unknown or Incomplete
 

 

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