CVE-2002-1031
published 2002-10-04CVE-2002-1031: KeyFocus (KF) web server 1.0.2 allows remote attackers to list directories and read restricted files via an HTTP request containing a %00 (null) character.
PriorityP426medium5CVSS 2.0
AVNACLAuNCPINAN
EXPLOIT
EPSS
8.04%
94.1th percentile
KeyFocus (KF) web server 1.0.2 allows remote attackers to list directories and read restricted files via an HTTP request containing a %00 (null) character.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| key_focus | kf_web_server | — | — |
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CWE
Improper Handling of URL Encoding (Hex Encoding)
mitre_cwe·CVSS 7.5
[HIGH] CWE-177 Improper Handling of URL Encoding (Hex Encoding)
CWE-177: Improper Handling of URL Encoding (Hex Encoding)
The product does not properly handle when all or part of an input has been URL encoded.
Modes of Introduction:
Phase: Implementation
Common Consequences:
Scope: Integrity. Impact: Unexpected State.
Potential Mitigations:
[Architecture and Design] Avoid making decisions based on names of resources (e.g. files) if those resources can have alternate names.
[Implementation] Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does. When performing input validation, consider all potentially relevant properties, including le
CWE
Improper Neutralization of Null Byte or NUL Character
mitre_cwe
CWE-158 Improper Neutralization of Null Byte or NUL Character
CWE-158: Improper Neutralization of Null Byte or NUL Character
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes NUL characters or null bytes when they are sent to a downstream component.
As data is parsed, an injected NUL character or null byte may cause the product to believe the input is terminated earlier than it actually is, or otherwise cause the input to be misinterpreted. This could then be used to inject potentially dangerous input that occurs after the null byte or otherwise bypass validation routines and other protection mechanisms.
Modes of Introduction:
Phase: Implementation
Common Consequences:
Scope: Integrity. Impact: Unexpected State.
Potential Mitigations:
Developers should anticipate that null characters or
http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0007.htmlhttp://online.securityfocus.com/archive/1/281102http://www.iss.net/security_center/static/9500.phphttp://www.keyfocus.net/kfws/support/http://www.securityfocus.com/bid/5177http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0007.htmlhttp://online.securityfocus.com/archive/1/281102http://www.iss.net/security_center/static/9500.phphttp://www.keyfocus.net/kfws/support/http://www.securityfocus.com/bid/5177
2002-10-04
Published