JWT - Unsecure File Signature

25 Points

(K)ind (I)dentification (D)ance

Author

Nishacid, Mika, 23 February 2023

Level

Validations

2700 Challengers 1%

Note

144 Votes

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3 Solutions

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Challenge Results

Pseudo	Challenge	Lang	Date
Mr_Demonolog	JWT - Unsecure File Signature		15 August 2025 at 11:24
0xhamdoon	JWT - Unsecure File Signature		14 August 2025 at 22:49
TomDuCoin	JWT - Unsecure File Signature		14 August 2025 at 20:58
Greyboy2003	JWT - Unsecure File Signature		14 August 2025 at 18:59
Remble_	JWT - Unsecure File Signature		14 August 2025 at 18:54
0xabd0	JWT - Unsecure File Signature		14 August 2025 at 18:45
Serkan	JWT - Unsecure File Signature		14 August 2025 at 00:23
Micmac	JWT - Unsecure File Signature		13 August 2025 at 18:33
he4am	JWT - Unsecure File Signature		13 August 2025 at 13:12
Tina	JWT - Unsecure File Signature		12 August 2025 at 21:34

97 Challenges

Results	Name	Validations	Number of points	Difficulty ↓↑	Author	Note	Solution	Date
	HTML - Source code	48% 175685	5		g0uZ		6	3 October 2006
	HTTP - Open redirect	19% 69322	10		Swissky		10	2 August 2017
	HTTP - User-agent	24% 87006	10		g0uZ		10	3 October 2006
	Weak password	31% 113513	10		g0uZ		7	3 October 2006
	PHP - Command injection	19% 69465	10		sambecks		10	20 September 2017
	HTTP - IP restriction bypass	9% 31951	10		Cyrhades		8	23 March 2021
	Install files	13% 45195	15		g0uZ		7	7 October 2006
	File upload - MIME type	8% 29183	20		g0uZ		10	26 December 2012
	File upload - Double extensions	10% 36171	20		g0uZ		10	24 December 2012
	Nginx - Root Location Misconfiguration	1% 1676	15		.Yo0x		1	27 September 2024
	Nginx - Alias Misconfiguration	1% 3366	15		.Yo0x		3	27 September 2024
	CRLF	9% 32664	20		g0uZ		7	31 July 2011
	HTTP - Verb tampering	13% 47867	15		g0uZ		10	3 February 2011
	HTTP - POST	14% 51496	15		Th1b4ud		10	14 August 2018
	HTTP - Headers	16% 56546	15		Arod		9	11 January 2015
	HTTP - Directory indexing	22% 79785	15		g0uZ		7	7 October 2006
	Backup file	16% 55876	15		g0uZ		10	27 February 2011
	API - Broken Access	2% 6139	15		Nishacid , Mika		4	18 January 2024
	HTTP - Improper redirect	12% 44054	15		Arod		10	26 November 2014
	PHP - Serialization	2% 6997	35		Arod		3	3 February 2014
	XPath injection - Authentication	2% 6868	35		g0uZ		6	27 December 2012
	XML External Entity	2% 5887	35		sambecks		2	20 October 2014
	SQL Truncation	2% 7072	35		Geluchat		2	1 May 2015
	SQL Injection - Routed	2% 5678	35		soka		5	24 December 2016
	SQL injection - Numeric	5% 15794	35		g0uZ		7	24 December 2012
	LDAP injection - Authentication	3% 10751	35		g0uZ		8	26 May 2013
	PHP - Path Truncation	2% 5632	35		Geluchat		6	25 March 2015
	NoSQL injection - Authentication	3% 8038	35		mastho		8	31 May 2015
	Node - Serialize	1% 1417	35		Mhd_Root		2	24 February 2021
	JWT - Unsecure Key Handling	1% 960	35		Nishacid , Mika		5	23 February 2023
	Elixir - EEx	1% 396	35		lolo42		1	29 November 2023
	API - Broken Access 2	1% 654	40		Nishacid , Mika		1	18 January 2024
	XSLT - Code execution	2% 3897	30		ghozt		5	16 July 2017
	Yaml - Deserialization	1% 1557	35		Nishacid		2	20 April 2021
	XPath injection - String	2% 4086	40		g0uZ		5	26 May 2013
	GraphQL - Backend injection	1% 515	40		apges01		1	19 January 2023
	File upload - Polyglot	1% 540	45		Cyxo		1	8 July 2022
	SQL injection - Blind	3% 8040	50		g0uZ		6	27 February 2011
	Server Side Request Forgery	1% 2017	50		sambecks		7	22 June 2018
	NodeJS - vm escape	1% 819	50		Podalirius		1	15 April 2021
	SQL injection - Time based	2% 6080	45		ycam		4	11 September 2015
	NoSQL injection - Blind	1% 3194	45		ghozt		6	26 November 2016
	NodeJS - Prototype Pollution Bypass	1% 613	45		Worty		1	22 October 2021
	SQL injection - Authentication - GBK	3% 10297	30		dvor4x		4	2 December 2015
	GraphQL - Mutation	1% 1670	40		CanardMandarin		2	20 October 2020
	SQL injection - File reading	2% 6162	40		Arod		3	19 October 2014
	SQL injection - Insert	1% 3335	40		sambecks		4	23 February 2015
	SQL injection - Error	3% 8369	40		sambecks		5	4 March 2015
	PHP - Eval - Advanced filters bypass	1% 682	40		Podalirius		2	8 July 2022
	PHP - Eval	2% 3825	40		chmod		10	8 November 2018
	Local File Inclusion - Wrappers	2% 3852	40		sambecks		4	2 March 2016
	Java - Spring Boot	1% 2431	40		dvor4x		3	24 December 2016
	SQL injection - String	7% 22786	30		g0uZ		10	24 December 2012
	PHP - Loose Comparison	3% 7583	30		ghozt		4	10 January 2018
	SQL injection - Authentication	13% 47855	30		g0uZ		11	27 February 2011
	Directory traversal	10% 36596	25		g0uZ		3	31 July 2011
	PHP - Apache configuration	1% 2771	25		erk3 , nemoz		4	8 July 2022
	Ruby on Rails - ransack	1% 52	30		koma		0	23 June 2025
	JWT - Unsecure File Signature	1% 2692	25		Nishacid , Mika		3	23 February 2023
	JWT - Weak secret	4% 12799	25		Jrmbt		7	21 August 2019
	JWT - Revoked token	2% 6652	25		ArnC		6	20 March 2020
	File upload - Null byte	7% 24836	25		g0uZ		4	26 December 2012
	XSS - Server Side	1% 3256	20		Elf		4	23 June 2023
	PHP - register globals	5% 16398	25		g0uZ		2	8 October 2011
	JWT - Introduction	5% 18392	20		Kn0wledge		5	21 August 2019
	Insecure Code Management	4% 14464	20		Swissky		6	29 September 2019
	HTTP - Cookies	13% 47150	20		g0uZ		8	7 October 2006
	GraphQL - Introspection	2% 4297	20		apges01		4	19 January 2023
	Flask - Unsecure session	1% 3274	20		Sanlokii		1	29 November 2023
	API - Mass Assignment	2% 3743	20		Nishacid , Mika		2	18 January 2024
	PHP - Filters	6% 20388	25		g0uZ		3	27 February 2011
	PHP - assert()	5% 16088	25		Birdy42		10	26 November 2016
	PHP - Remote Xdebug	1% 1585	25		mayfly		4	18 March 2020
	Local File Inclusion	8% 26388	30		g0uZ		4	2 October 2011
	Remote File Inclusion	4% 12257	30		g0uZ		8	25 November 2015
	PHP - type juggling	3% 9172	30		vic		4	10 March 2016
	PHP - preg_replace()	3% 9392	30		sambecks		4	2 March 2016
	Python - Server-side Template Injection Introduction	2% 5079	25		Podalirius		7	7 September 2021
	Nginx - SSRF Misconfiguration	1% 397	30		.Yo0x		1	27 September 2024
	Local File Inclusion - Double encoding	4% 13367	30		zM_		4	13 June 2016
	Node - Eval	1% 3171	30		Mhd_Root		7	24 February 2021
	JWT - Header Injection	1% 1455	30		Nishacid , Mika		2	23 February 2023
	JWT - Public key	2% 4169	30		Jrmbt		5	21 August 2019
	Java - Server-side Template Injection	4% 11181	30		righettod		6	29 November 2015
	Command injection - Filter bypass	3% 8024	30		sambecks		6	20 September 2017
	GraphQL - Injection	1% 950	30		apges01		2	19 January 2023
	Flask - Development server	1% 1237	30		Sanlokii		1	29 November 2023
	File upload - ZIP	3% 10084	30		ghozt		3	3 August 2017
	Java - Custom gadget deserialization	1% 258	50		Elweth		0	28 December 2023
	LDAP injection - Blind	1% 3597	55		g0uZ		2	8 June 2013
	PHP - Unserialize overflow	1% 824	55		mayfly		2	4 April 2020
	PHP - Unserialize Pop Chain	1% 785	55		Worty		2	22 October 2021
	SQL Injection - Second Order	1% 272	55		k4ndar3c		1	29 November 2023
	Python - dotenv	1% 131	70		jrjgjk		1	27 September 2024
	Python - Blind SSTI Filters Bypass	1% 740	75		Podalirius		5	7 September 2021
	XPath injection - Blind	1% 2482	75		g0uZ		5	27 December 2012
	SQL injection - Filter bypass	1% 3123	80		sambecks		7	21 July 2014