stevespringett / cpe-parser Goto Github PK

A utility for validating and parsing Common Platform Enumeration (CPE) v2.2 and v2.3 as originally defined by MITRE and maintained by NIST

License: Apache License 2.0

Java 99.89% Shell 0.11%

cpe java library mitre nist nvd

cpe-parser's People

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jeremylong anoopk19 adian98 anderruiz l4inoday benhe119 chubbymaggie kinkyjohn wilx jssellars coderzgh syllogy jasper-ben nscuro

cpe-parser's Issues

Publish PGP key ID.

Maven Central requires all published artifacts to be signed using PGP. If a publisher provides their key ID to PGP keys map then end users can use the Verify PGP signatures plugin to validate that the artifact has not been altered or replaced as part of a supply-chain attack.

2021-04-21 - NIST NVD data not parseable

Hi Steve! I think this is an issue with the NIST NVD feed starting a few hours ago, but wanted to give you a heads up. Feels like an unintended format change at NIST, if you have any contacts.

Seeing Dependency-Check fail to parse this CPE (seems to parse via CPE-Parser):

cpe:2.3:a:cgiirc:cgi:irc:0.5.7:*:*:*:*:*:*:*

Seen in the 2011 data file from NIST:

➜  ~ curl --silent https://nvd.nist.gov/feeds/json/cve/1.1/nvdcve-1.1-2011.json.gz | gunzip | grep -r -F "cpe:2.3:a:cgiirc:cgi:irc:0.5.7"
(standard input):          "cpe23Uri" : "cpe:2.3:a:cgiirc:cgi:irc:0.5.7:*:*:*:*:*:*:*",

Also see jeremylong/DependencyCheck#3307.

org.owasp.dependencycheck.data.nvdcve.DatabaseException: Unable to parse CPE: cpe:2.3:a:cgiirc:cgi:irc:0.5.7:*:*:*:*:*:*:*
org.owasp.dependencycheck.data.update.exception.UpdateException: org.owasp.dependencycheck.data.nvdcve.DatabaseException: Unable to parse CPE: cpe:2.3:a:cgiirc:cgi:irc:0.5.7:*:*:*:*:*:*:*
    at org.owasp.dependencycheck.data.update.nvd.ProcessTask.processFiles(ProcessTask.java:156)
    at org.owasp.dependencycheck.data.update.nvd.ProcessTask.call(ProcessTask.java:113)
    at org.owasp.dependencycheck.data.update.nvd.ProcessTask.call(ProcessTask.java:40)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:749)
Caused by: org.owasp.dependencycheck.data.nvdcve.DatabaseException: Unable to parse CPE: cpe:2.3:a:cgiirc:cgi:irc:0.5.7:*:*:*:*:*:*:*
    at org.owasp.dependencycheck.data.nvdcve.CveDB.parseCpe(CveDB.java:1341)
    at org.owasp.dependencycheck.data.nvdcve.CveDB.lambda$parseCpes$3(CveDB.java:1298)
    at java.util.ArrayList.forEach(ArrayList.java:1259)
    at org.owasp.dependencycheck.data.nvdcve.CveDB.parseCpes(CveDB.java:1297)
    at org.owasp.dependencycheck.data.nvdcve.CveDB.updateVulnerability(CveDB.java:880)
    at org.owasp.dependencycheck.data.update.nvd.NvdCveParser.parse(NvdCveParser.java:99)
    at org.owasp.dependencycheck.data.update.nvd.ProcessTask.importJSON(ProcessTask.java:139)
    at org.owasp.dependencycheck.data.update.nvd.ProcessTask.processFiles(ProcessTask.java:152)
    ... 6 more
Caused by: us.springett.parsers.cpe.exceptions.CpeParsingException: Invalid CPE (too many components): cpe:2.3:a:cgiirc:cgi:irc:0.5.7:*:*:*:*:*:*:*
    at us.springett.parsers.cpe.CpeParser.parse23(CpeParser.java:225)
    at us.springett.parsers.cpe.CpeParser.parse(CpeParser.java:77)
    at org.owasp.dependencycheck.data.nvdcve.CveDB.parseCpe(CveDB.java:1331)
    ... 13 more

Convert.wellFormedToFS issue

When a field in a CPE contains a trailing . character, parsing the CPE and converting it back to string generates a result different from the original cpe string.
For example

String cpe = "cpe:2.3:a:bookly_project:bookly:3.4.:*:*:*:*:wordpress:*:*";
Cpe parsedCpe = CpeParser.parse(cpe);
System.out.println(parsedCpe.toCpe23FS());

Outputs

cpe:2.3:a:bookly_project:bookly:3.4\.:*:*:*:*:wordpress:*:*

Probably an edge case but there are still CPEs with this format in NVD (although probably deprecated).

Should `subset` of `ANY` be considered a match

The CPE 2.3 specification does not specify matching in terms of true/false - rather it defines four relations: equal, disjoint, superset, and subset (see table 6-2 in the specification).

The current implementation treats equal and superset as true. However, subsets are considered false (5, 13, 15 - numbers equate to entries in table 6-2):

CPE-Parser/src/main/java/us/springett/parsers/cpe/Cpe.java

Lines 618 to 627 in b90081a

 } else if (LogicalValue.NA.getAbbreviation().equals(left)) { 

 //5 7 8 

 return false; 

 } else if (LogicalValue.NA.getAbbreviation().equals(right)) { 

 //12 16 

 return false; 

 } else if (LogicalValue.ANY.getAbbreviation().equals(right)) { 

 //13 15 

 return false; 

 }

This leads to a scenario where we have a source from the NVD for CVE-2019-1003058 of cpe:2.3:a:jenkins:ftp_publisher:*:*:*:*:*:jenkins:*:* that does not match the target CPE identified by dependency-check: cpe:2.3:a:jenkins:ftp_publisher:*:*:*:*:*:*:*. The comparison of the source target software of jenkins is a subset of the target ANY.

Thus, subset should likely be considered true.

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	} else if (LogicalValue.NA.getAbbreviation().equals(left)) {
	//5 7 8
	return false;
	} else if (LogicalValue.NA.getAbbreviation().equals(right)) {
	//12 16
	return false;
	} else if (LogicalValue.ANY.getAbbreviation().equals(right)) {
	//13 15
	return false;
	}