Sisimai up to 4.25.14p11 lib/sisimai/string.rb to_plain redos

A vulnerability has been found in Sisimai up to 4.25.14p11 and classified as problematic. This vulnerability affects the function to_plain of the file lib/sisimai/string.rb. The manipulation leads to inefficient regular expression complexity. Using CWE to declare the problem leads to CWE-1333. The weakness was disclosed 01/16/2023 as 244. The advisory is shared for download at github.com. This vulnerability was named CVE-2022-4891. The attack needs to be done within the local network. Technical details are available. Furthermore, there is an exploit available. The exploit has been disclosed to the public and may be used. The current price for an exploit might be approx. USD $0-$5k at the moment. The MITRE ATT&CK project declares the attack technique as T1449.003. It is declared as proof-of-concept. It is possible to download the exploit at gist.githubusercontent.com. As 0-day the estimated underground price was around $0-$5k. Upgrading to version 4.25.14p12 is able to address this issue. The updated version is ready for download at github.com. The name of the patch is 51fe2e6521c9c02b421b383943dc9e4bbbe65d4e. The bugfix is ready for download at github.com. It is recommended to upgrade the affected component. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

Field01/16/2023 19:4902/09/2023 08:3402/09/2023 08:36
nameSisimaiSisimaiSisimai
version<=4.25.14p11<=4.25.14p11<=4.25.14p11
filelib/sisimai/string.rblib/sisimai/string.rblib/sisimai/string.rb
functionto_plainto_plainto_plain
cwe1333 (redos)1333 (redos)1333 (redos)
risk111
cvss3_vuldb_acLLL
cvss3_vuldb_sUUU
cvss3_vuldb_cNNN
cvss3_vuldb_iNNN
cvss3_vuldb_aLLL
cvss3_vuldb_ePPP
cvss3_vuldb_rlOOO
cvss3_vuldb_rcCCC
identifier244244244
urlhttps://github.com/sisimai/rb-sisimai/pull/244https://github.com/sisimai/rb-sisimai/pull/244https://github.com/sisimai/rb-sisimai/pull/244
availability111
publicity111
urlhttps://gist.githubusercontent.com/gmcabrita/e5dc0332473fc2e3a7a407434c8d21c7/raw/00b12035e5e1b685469f143b94301a50306376ba/example.htmlhttps://gist.githubusercontent.com/gmcabrita/e5dc0332473fc2e3a7a407434c8d21c7/raw/00b12035e5e1b685469f143b94301a50306376ba/example.htmlhttps://gist.githubusercontent.com/gmcabrita/e5dc0332473fc2e3a7a407434c8d21c7/raw/00b12035e5e1b685469f143b94301a50306376ba/example.html
nameUpgradeUpgradeUpgrade
upgrade_version4.25.14p124.25.14p124.25.14p12
upgrade_urlhttps://github.com/sisimai/rb-sisimai/releases/tag/v4.25.14p12https://github.com/sisimai/rb-sisimai/releases/tag/v4.25.14p12https://github.com/sisimai/rb-sisimai/releases/tag/v4.25.14p12
patch_name51fe2e6521c9c02b421b383943dc9e4bbbe65d4e51fe2e6521c9c02b421b383943dc9e4bbbe65d4e51fe2e6521c9c02b421b383943dc9e4bbbe65d4e
patch_urlhttps://github.com/sisimai/rb-sisimai/commit/51fe2e6521c9c02b421b383943dc9e4bbbe65d4ehttps://github.com/sisimai/rb-sisimai/commit/51fe2e6521c9c02b421b383943dc9e4bbbe65d4ehttps://github.com/sisimai/rb-sisimai/commit/51fe2e6521c9c02b421b383943dc9e4bbbe65d4e
advisoryquotePrevent Regex Denial of Service in Sisimai::String.to_plainPrevent Regex Denial of Service in Sisimai::String.to_plainPrevent Regex Denial of Service in Sisimai::String.to_plain
cveCVE-2022-4891CVE-2022-4891CVE-2022-4891
responsibleVulDBVulDBVulDB
date1673823600 (01/16/2023)1673823600 (01/16/2023)1673823600 (01/16/2023)
cvss2_vuldb_acLLL
cvss2_vuldb_ciNNN
cvss2_vuldb_iiNNN
cvss2_vuldb_aiPPP
cvss2_vuldb_ePOCPOCPOC
cvss2_vuldb_rcCCC
cvss2_vuldb_rlOFOFOF
cvss2_vuldb_avAAA
cvss2_vuldb_auSSS
cvss3_vuldb_avAAA
cvss3_vuldb_prLLL
cvss3_vuldb_uiNNN
cvss2_vuldb_basescore2.72.72.7
cvss2_vuldb_tempscore2.12.12.1
cvss3_vuldb_basescore3.53.53.5
cvss3_vuldb_tempscore3.23.23.2
cvss3_meta_basescore3.53.54.8
cvss3_meta_tempscore3.23.24.7
price_0day$0-$5k$0-$5k$0-$5k
cve_assigned1673823600 (01/16/2023)1673823600 (01/16/2023)
cve_nvd_summaryA vulnerability has been found in Sisimai up to 4.25.14p11 and classified as problematic. This vulnerability affects the function to_plain of the file lib/sisimai/string.rb. The manipulation leads to inefficient regular expression complexity. The exploit has been disclosed to the public and may be used. Upgrading to version 4.25.14p12 is able to address this issue. The name of the patch is 51fe2e6521c9c02b421b383943dc9e4bbbe65d4e. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218452.A vulnerability has been found in Sisimai up to 4.25.14p11 and classified as problematic. This vulnerability affects the function to_plain of the file lib/sisimai/string.rb. The manipulation leads to inefficient regular expression complexity. The exploit has been disclosed to the public and may be used. Upgrading to version 4.25.14p12 is able to address this issue. The name of the patch is 51fe2e6521c9c02b421b383943dc9e4bbbe65d4e. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218452.
cvss3_nvd_avN
cvss3_nvd_acL
cvss3_nvd_prN
cvss3_nvd_uiN
cvss3_nvd_sU
cvss3_nvd_cN
cvss3_nvd_iN
cvss3_nvd_aH
cvss2_nvd_avA
cvss2_nvd_acL
cvss2_nvd_auS
cvss2_nvd_ciN
cvss2_nvd_iiN
cvss2_nvd_aiP
cvss3_cna_avA
cvss3_cna_acL
cvss3_cna_prL
cvss3_cna_uiN
cvss3_cna_sU
cvss3_cna_cN
cvss3_cna_iN
cvss3_cna_aL
cve_cnaVulDB
cvss2_nvd_basescore2.7
cvss3_nvd_basescore7.5
cvss3_cna_basescore3.5

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