界: Errors
错误和错误处理代表一类 API。与错误处理相关的错误非常普遍,因此它们应该拥有自己的专属章节。与“API 滥用”一样,有两种情况可以引入与错误相关的安全漏洞:最常见的一种是错误处理不当(或者根本不处理)。第二种是产生错误,这些错误要么(向潜在的攻击者)泄露过多信息,要么难以处理。
Poor Condition Handling: Ignored Condition
Abstract
忽略条件会导致程序无法发现意外状况和错误。
Explanation
几乎每一个对软件系统的严重攻击都是从违反程序员的假设开始的。攻击后,程序员的假设看起来既脆弱又拙劣,但攻击前,许多程序员会在午休时间为自己的种种假设做很好的辩护。
在代码中,很容易发现两个令人怀疑的假设:“一是这个函数调用不可能出错;二是即使出错了,也不会对系统造成什么重要影响。”因此当程序员忽略条件时,这其实就表明了他们是基于上述假设进行的操作。
例 1:下列摘录的代码会忽略 CICS 事务期间可能发生的错误情况。
如果事务因为此错误情况而失败,程序会继续执行,就像什么都没有发生一样。程序不会记录任何有关这一特殊情况的依据,因而事后再查找这一异常就可能很困难。
在代码中,很容易发现两个令人怀疑的假设:“一是这个函数调用不可能出错;二是即使出错了,也不会对系统造成什么重要影响。”因此当程序员忽略条件时,这其实就表明了他们是基于上述假设进行的操作。
例 1:下列摘录的代码会忽略 CICS 事务期间可能发生的错误情况。
...
EXEC CICS
INGNORE CONDITION ERROR
END-EXEC.
...
如果事务因为此错误情况而失败,程序会继续执行,就像什么都没有发生一样。程序不会记录任何有关这一特殊情况的依据,因而事后再查找这一异常就可能很困难。
References
[1] Standards Mapping - Common Weakness Enumeration CWE ID 391
[2] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001312, CCI-001314, CCI-003272
[3] Standards Mapping - FIPS200 AU
[4] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[5] Standards Mapping - NIST Special Publication 800-53 Revision 4 SA-15 Development Process and Standards and Tools (P2), SI-11 Error Handling (P2)
[6] Standards Mapping - NIST Special Publication 800-53 Revision 5 SA-15 Development Process and Standards and Tools, SI-11 Error Handling
[7] Standards Mapping - OWASP Top 10 2004 A7 Improper Error Handling
[8] Standards Mapping - OWASP Top 10 2007 A6 Information Leakage and Improper Error Handling
[9] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.7
[10] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.2, Requirement 6.5.6
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.5
[12] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.5
[13] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.5
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.5
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.5
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[17] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.6 - Sensitive Data Retention
[18] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.6 - Sensitive Data Retention, Control Objective B.3.2 - Terminal Software Attack Mitigation
[19] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.6 - Sensitive Data Retention, Control Objective B.3.2 - Terminal Software Attack Mitigation
[20] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3120 CAT II
[21] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3120 CAT II
[22] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3120 CAT II
[23] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3120 CAT II
[24] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3120 CAT II
[25] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3120 CAT II
[26] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3120 CAT II
[27] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
desc.semantic.cobol.poor_condition_handling_ignored_condition