GNU · Bourne-Again Shell (Bash)
CVE-2014-7169
GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability
这是什么
GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown other impact via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271.
CISA: GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute code. This CVE correctly remediates the vulnerability in CVE-2014-6271.
该怎么做
Apply updates per vendor instructions.
美国联邦机构的修复期限：2022年7月28日
- 加入 CISA 列表
- 2022年1月28日
- 发布日期
- 2014年9月25日
- 严重程度
- 严重 9.8 CVSS 3.1
- 未来 30 天遭受攻击的概率（EPSS）
- 99.9% 位列所有已知漏洞的前 0.1%
- 弱点类型
- CWE-78
- 更多详情
- NVD · CVE.org · CISA
全部参考链接（20）
- http://marc.info/?l=bugtraq&m=141577137423233&w=2
- http://marc.info/?l=bugtraq&m=141216668515282&w=2
- http://marc.info/?l=bugtraq&m=141383138121313&w=2
- http://marc.info/?l=bugtraq&m=142721162228379&w=2
- http://marc.info/?l=bugtraq&m=142358026505815&w=2
- http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00038.html
- http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00044.html
- http://marc.info/?l=bugtraq&m=141383026420882&w=2
- http://packetstormsecurity.com/files/128517/VMware-Security-Advisory-2014-0010.html
- http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004897
- http://www-01.ibm.com/support/docview.wss?uid=swg21685749
- http://www.openwall.com/lists/oss-security/2014/09/24/32
- https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk1…
- http://www.securityfocus.com/archive/1/533593/100/0/threaded
- http://www-01.ibm.com/support/docview.wss?uid=swg21686084
- http://www-01.ibm.com/support/docview.wss?uid=swg21686479
- http://secunia.com/advisories/61188
- http://jvn.jp/en/jp/JVN55667175/index.html
- http://secunia.com/advisories/61676
- http://secunia.com/advisories/60433
GNU 的其他被利用漏洞
| 加入日期 | 漏洞 | 产品 | 严重程度 | 受攻击概率 |
|---|---|---|---|---|
| 2022年1月28日 | Arbitrary Code Execution | Bourne-Again Shell (Bash) | 严重 9.8 | >99.9% |
| 2026年1月26日 | Argument Injection | InetUtils | 严重 9.8 | 99% |
| 2025年10月2日 | Bash OS Command Injection | GNU Bash | 高 8.8 | 99.7% |
| 2023年11月21日 | C Library Buffer Overflow | GNU C Library | 高 7.8 | 64% |
来源：Known Exploited Vulnerabilities（CISA，公有领域）、CVE records（cve.org）和 EPSS（FIRST）。受攻击概率是 EPSS 对未来 30 天内有人尝试利用该漏洞的估计。