MIT Kerberos 5 KAdminD服务程序rename_principal_2_svc()函数远程栈溢出漏洞

漏洞信息详情

MIT Kerberos 5 KAdminD服务程序rename_principal_2_svc()函数远程栈溢出漏洞

• CNNVD编号：CNNVD-200706-482
• 危害等级： 高危
  
  
• CVE编号：
  CVE-2007-2798
  
• 漏洞类型：
  
  
  缓冲区溢出
  
• 发布时间：
  
  2006-06-01
  
• 威胁类型：
  
  
  特定网络环境
  
• 更新时间：
  
  2007-08-13
  
• 厂        商：
  
  mit
• 漏洞来源：
  iDEFENSE

Kerberos是美国麻省理工学院（MIT）开发的一套网络认证协议，它采用客户端/服务器结构，并且客户端和服务器端均可对对方进行身份认证（即双重验证），可防止窃听、防止replay攻击等。MIT Kerberos 5（又名krb5）是美国麻省理工学院（MIT）开发的一套网络认证协议，它采用客户端/服务器结构，并且客户端和服务器端均可对对方进行身份认证（即双重验证），可防止窃听、防止replay攻击等。

Kerberos中负责处理重新命名主体的代码中存在缓冲区溢出漏洞，远程攻击者可能利用此漏洞控制服务器。

rename_principal_2_svc函数没有对用户提供数据执行边界检查便拷贝到了固定大小的缓冲区，漏洞代码如下：

542 generic_ret *

543 rename_principal_2_svc(rprinc_arg *arg, struct svc_req *rqstp)

544 {

545 static generic_ret ret;

546 char *prime_arg1,

547 *prime_arg2;

548 char prime_arg[BUFSIZ];

…

570 if (krb5_unparse_name(handle-＞context, arg-＞src, ＆prime_arg1) ||

571 krb5_unparse_name(handle-＞context, arg-＞dest, ＆prime_arg2)) {

572 ret.code = KADM5_BAD_PRINCIPAL;

573 goto exit_func;

574 }

575 sprintf(prime_arg, \”\\%s to \\%s\”, prime_arg1, prime_arg2);

在570和571行从kadmind服务程序环境中获得了攻击者提供的数据，在575行以静态文本连接源主体名和目标主体名时会出现栈溢出。

成功攻击可能导致完全入侵Kerberos密钥数据库，破坏KDC主机的安全性(kadmind通常以root权限运行)，不成功的攻击也会导致kadmind崩溃。

目前厂商已经发布了升级补丁以修复这个安全问题，补丁下载链接：

Debian

——

Debian已经为此发布了一个安全公告(DSA-1323-1)以及相应补丁:

DSA-1323-1：New krb5 packages fix several vulnerabilities

链接：

http://www.debian.org/security/2007/dsa-1323

补丁下载：

Source archives:

http://security.debian.org/pool/updates/main/k/krb5/krb5_1.3.6-2sarge5.dsc

Size/MD5 checksum:782 b600466763baa4f89a8fed5a832eb9d3

http://security.debian.org/pool/updates/main/k/krb5/krb5_1.3.6-2sarge5.diff.gz

Size/MD5 checksum: 669293 0e9dfa39e8db2e0ce871ba40c46c925e

http://security.debian.org/pool/updates/main/k/krb5/krb5_1.3.6.orig.tar.gz

Size/MD5 checksum:6526510 7974d0fc413802712998d5fc5eec2919

Architecture independent components:

http://security.debian.org/pool/updates/main/k/krb5/krb5-doc_1.3.6-2sarge5_all.deb

Size/MD5 checksum: 718836 58c01536ff87db5d3492264349fe844c

Alpha architecture:

http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.3.6-2sarge5_alpha.deb

Size/MD5 checksum: 115250 ac5498fab92f1047f47f45bb8269fcee

http://security.debian.org/pool/updates/main/k/krb5/krb5-clients_1.3.6-2sarge5_alpha.deb

Size/MD5 checksum: 247680 f5201ab228a84b6f25ed42e422f6fd92

http://security.debian.org/pool/updates/main/k/krb5/krb5-ftpd_1.3.6-2sarge5_alpha.deb

Size/MD5 checksum:62994 fd67dbebb83e11fe7a8d35b4a5209293

http://security.debian.org/pool/updates/main/k/krb5/krb5-kdc_1.3.6-2sarge5_alpha.deb

Size/MD5 checksum: 137138 d44e84b8e1c36215644d8224ae685e96

http://security.debian.org/pool/updates/main/k/krb5/krb5-rsh-server_1.3.6-2sarge5_alpha.deb

Size/MD5 checksum:89720 a4b4f7829ef043e7013887fdb967606f

http://security.debian.org/pool/updates/main/k/krb5/krb5-telnetd_1.3.6-2sarge5_alpha.deb

Size/MD5 checksum:72246 cf93e00c42669deba711fcfbde5285c8

http://security.debian.org/pool/updates/main/k/krb5/krb5-user_1.3.6-2sarge5_alpha.deb

Size/MD5 checksum: 144880 e71073e49208fae27ef0a20c7920ad48

http://security.debian.org/pool/updates/main/k/krb5/libkadm55_1.3.6-2sarge5_alpha.deb

Size/MD5 checksum: 201848 7e5171239d1e3970665029a2286acbb4

http://security.debian.org/pool/updates/main/k/krb5/libkrb5-dev_1.3.6-2sarge5_alpha.deb

Size/MD5 checksum: 861082 4017652625bc8408d5e1eb3f056699c4

http://security.debian.org/pool/updates/main/k/krb5/libkrb53_1.3.6-2sarge5_alpha.deb

Size/MD5 checksum: 422580 385ae85ece57a191de28006b2b1ed342

AMD64 architecture:

http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.3.6-2sarge5_amd64.deb

Size/MD5 checksum: 104806 d3cb00189b4a3860ed2c89620733d4bb

http://security.debian.org/pool/updates/main/k/krb5/krb5-clients_1.3.6-2sarge5_amd64.deb

Size/MD5 checksum: 216896 c33630904c3b747231ab395734213076

http://security.debian.org/pool/updates/main/k/krb5/krb5-ftpd_1.3.6-2sarge5_amd64.deb

Size/MD5 checksum:56952 7a55c1a696cf6d7afe84fdbc0ecc59c5

http://security.debian.org/pool/updates/main/k/krb5/krb5-kdc_1.3.6-2sarge5_amd64.deb

Size/MD5 checksum: 124744 600f391ee2adc80b057309ccd45b0748

http://security.debian.org/pool/updates/main/k/krb5/krb5-rsh-server_1.3.6-2sarge5_amd64.deb

Size/MD5 checksum:82710 8baedacdf63faf0bf27c41997f15a0d7

http://security.debian.org/pool/updates/main/k/krb5/krb5-telnetd_1.3.6-2sarge5_amd64.deb

Size/MD5 checksum:63508 9b9d4ab137302d171649de86dbd5f2a7

http://security.debian.org/pool/updates/main/k/krb5/krb5-user_1.3.6-2sarge5_amd64.deb

Size/MD5 checksum: 137754 536e88b5bdab0b8385fdd151d7295555

http://security.debian.org/pool/updates/main/k/krb5/libkadm55_1.3.6-2sarge5_amd64.deb

Size/MD5 checksum: 177638 47af31f544051191e34a81bb230f3e69

http://security.debian.org/pool/updates/main/k/krb5/libkrb5-dev_1.3.6-2sarge5_amd64.deb

Size/MD5 checksum: 652300 64c39da5cd28173831c590c1a61024e1

http://security.debian.org/pool/updates/main/k/krb5/libkrb53_1.3.6-2sarge5_amd64.deb

Size/MD5 checksum: 369328 e69e658a600a340b7a981052cc93ba9f

ARM architecture:

http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.3.6-2sarge5_arm.deb

Size/MD5 checksum:93646 faaef2bab601737cacaf68e76e3dbf34

http://security.debian.org/pool/updates/main/k/krb5/krb5-c

来源: US-CERT

名称: TA07-177A

链接:http://www.us-cert.gov/cas/techalerts/TA07-177A.html

来源: US-CERT

名称: VU#554257

链接:http://www.kb.cert.org/vuls/id/554257

来源: IDEFENSE

名称: 20070626 Multiple Vendor Kerberos kadmind Rename Principal Buffer Overflow Vulnerability

链接:http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=548

来源: issues.rpath.com

链接:https://issues.rpath.com/browse/RPL-1499

来源: XF

名称: kerberos-renameprincipal2svc-bo(35080)

链接:http://xforce.iss.net/xforce/xfdb/35080

来源: UBUNTU

名称: USN-477-1

链接:http://www.ubuntu.com/usn/usn-477-1

来源: SECTRACK

名称: 1018295

链接:http://www.securitytracker.com/id?1018295

来源: BID

名称: 25159

链接:http://www.securityfocus.com/bid/25159

来源: BID

名称: 24653

链接:http://www.securityfocus.com/bid/24653

来源: BUGTRAQ

名称: 20070629 TSLSA-2007-0021 – kerberos5

链接:http://www.securityfocus.com/archive/1/archive/1/472507/30/5970/threaded

来源: BUGTRAQ

名称: 20070628 FLEA-2007-0029-1: krb5 krb5-workstation

链接:http://www.securityfocus.com/archive/1/archive/1/472432/100/0/threaded

来源: BUGTRAQ

名称: 20070626 MITKRB5-SA-2007-005: kadmind vulnerable to buffer overflow

链接:http://www.securityfocus.com/archive/1/archive/1/472289/100/0/threaded

来源: REDHAT

名称: RHSA-2007:0562

链接:http://www.redhat.com/support/errata/RHSA-2007-0562.html

来源: REDHAT

名称: RHSA-2007:0384

链接:http://www.redhat.com/support/errata/RHSA-2007-0384.html

来源: SUSE

名称: SUSE-SA:2007:038

链接:http://www.novell.com/linux/security/advisories/2007_38_krb5.html

来源: MANDRIVA

名称: MDKSA-2007:137

链接:http://www.mandriva.com/security/advisories?name=MDKSA-2007:137

来源: VUPEN

名称: ADV-2007-3229

链接:http://www.frsirt.com/english/advisories/2007/3229

来源: VUPEN

名称: ADV-2007-2732

链接:http://www.frsirt.com/english/advisories/2007/2732

来源: VUPEN

名称: ADV-2007-2491

链接:http://www.frsirt.com/english/advisories/2007/2491

来源: VUPEN

名称: ADV-2007-2370

链接:http://www.frsirt.com/english/advisories/2007/2370

来源: VUPEN

名称: ADV-2007-2337

链接:http://www.frsirt.com/english/advisories/2007/2337

来源: DEBIAN

名称: DSA-1323

链接:http://www.debian.org/security/2007/dsa-1323

来源: web.mit.edu

链接:http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2007-005.txt

来源: SUNALERT

名称: 102985

链接:http://sunsolve.sun.com/search/document.do?assetkey=1-26-102985-1

来源: GENTOO

名称: GLSA-200707-11

链接:http://security.gentoo.org/glsa/glsa-200707-11.xml

来源: SECUNIA

名称: 27706

链接:http://secunia.com/advisories/27706

来源: SECUNIA

名称: 26909

链接:http://secunia.com/advisories/26909

来源: SECUNIA

名称: 26235

链接:http://secunia.com/advisories/26235

来源: SECUNIA

名称: 26228

链接:http://secunia.com/advisories/26228

来源: SECUNIA

名称: 26033

链接:http://secunia.com/advisories/26033

来源: SECUNIA

名称: 25911

链接:http://secunia.com/advisories/25911

来源: SECUNIA

名称: 25894

链接:http://secunia.com/advisories/25894

来源: SECUNIA

名称: 25890

链接:http://secunia.com/advisories/25890

来源: SECUNIA

名称: 25888

链接:http://secunia.com/advisories/25888

来源: SECUNIA

名称: 25875

链接:http://secunia.com/advisories/25875

来源: SECUNIA

名称: 25870

链接:http://secunia.com/advisories/25870

来源: SECUNIA

名称: 25821

链接:http://secunia.com/advisories/25821

来源: SECUNIA

名称: 25814

链接:http://secunia.com/advisories/25814

来源: SECUNIA

名称: 25801

链接:http://secunia.com/advisories/25801

来源: SECUNIA

名称: 25800

链接:http://secunia.com/advisories/25800

来源: APPLE

名称: APPLE-SA-2007-07-31

链接:http://lists.apple.com/archives/security-announce//2007/Jul/msg00004.html

来源: docs.info.apple.com

链接:http://docs.info.apple.com/article.html?artnum=306172

来源: SGI

名称: 20070602-01-P

链接:ftp://patches.sgi.com/support/free/security/advisories/20070602-01-P.asc

来源: US Government Resource: oval:org.mitre.oval:def:1726

名称: oval:org.mitre.oval:def:1726

链接:http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:1726