File Compression Software Vulnerabilities

Timeline

The analysis of the timeline helps to identify the required approach and handling of single vulnerabilities and vulnerability collections. This overview makes it possible to see less important slices and more severe hotspots at a glance. Initiating immediate vulnerability response and prioritizing of issues is possible.

Vendor

Identifying all affected vendors is a good starting point for an overview. This makes it possible to determine an homogeneous landscape or the most important hotspots in heterogeneous landscapes.

Product

libarchive60
7-zip10
RarLabs WinRar9
WinZip9
Rarlab WinRAR5

Grouping vulnerabilities by products helps to get an overview. This makes it possible to determine an homogeneous landscape or the most important hotspots in heterogeneous landscapes.

Remediation

Official Fix91
Temporary Fix0
Workaround0
Unavailable2
Not Defined20

Vendors and researchers are eager to find countermeasures to mitigate security vulnerabilities. These can be distinguished between multiple forms and levels of remediation which influence risks differently.

Exploitability

High1
Functional0
Proof-of-Concept24
Unproven3
Not Defined85

Researcher and attacker which are looking for security vulnerabilities try to exploit them for academic purposes or personal gain. The level and quality of exploitability can be distinguished to determine simplicity and strength of attacks.

Access Vector

Not Defined0
Physical0
Local31
Adjacent5
Network77

The approach a vulnerability it becomes important to use the expected access vector. This is typically via the network, local, or physically even.

Authentication

Not Defined0
High0
Low9
None104

To exploit a vulnerability a certail level of authentication might be required. Vulnerabilities without such a requirement are much more popular.

User Interaction

Not Defined0
Required43
None70

Some attack scenarios require some user interaction by a victim. This is typical for phishing, social engineering and cross site scripting attacks.

C3BM Index

Our unique C3BM Index (CVSSv3 Base Meta Index) cumulates the CVSSv3 Meta Base Scores of all entries over time. Comparing this index to the amount of disclosed vulnerabilities helps to pinpoint the most important events.

CVSSv3 Base

≤10
≤20
≤30
≤44
≤55
≤632
≤724
≤836
≤96
≤106

The Common Vulnerability Scoring System (CVSS) is an industry standard to define the characteristics and impacts of security vulnerabilities. The base score represents the intrinsic aspects that are constant over time and across user environments. Our unique meta score merges all available scores from different sources to aggregate to the most reliable result.

CVSSv3 Temp

≤10
≤20
≤30
≤45
≤59
≤633
≤731
≤825
≤99
≤101

The Common Vulnerability Scoring System (CVSS) uses temp scores to reflect the characteristics of a vulnerability that may change over time but not across user environments. This includes reporting confidence, exploitability and remediation levels. We do also provide our unique meta score for temp scores, even though other sources rarely publish them.

VulDB

≤10
≤20
≤30
≤48
≤56
≤631
≤720
≤835
≤97
≤106

The moderation team is always defining the base vector and base score for an entry. These and all other available scores are used to generate the meta score.

NVD

≤10
≤20
≤30
≤40
≤50
≤619
≤713
≤825
≤97
≤100

The National Vulnerability Database (NVD) is also defining CVSS vectors and scores. These are usually not complete and might differ from VulDB scores.

CNA

≤10
≤20
≤30
≤40
≤50
≤60
≤70
≤80
≤90
≤100

A CVE Numbering Authority (CNA) is responsible for assigning new CVE entries. They might also include a CVSS score. These are usually not complete and might differ from VulDB scores.

Vendor

≤10
≤20
≤30
≤40
≤50
≤60
≤70
≤80
≤90
≤100

Some vendors are willing to publish their own CVSS vectors and scores for vulnerabilities in their products. The coverage varies from vendor to vendor.

Research

≤10
≤20
≤30
≤40
≤50
≤60
≤70
≤80
≤90
≤100

There are sometimes also security researcher which provide their own CVSS vectors and scores for vulnerabilities they have found and published.

Exploit 0-day

<1k31
<2k15
<5k52
<10k2
<25k8
<50k5
<100k0
≥100k0

The moderation team is working with the threat intelligence team to determine prices for exploits. Our unique algorithm is used to identify the 0-day prices for an exploit, before it got distributed or became public. Calculated prices are aligned to prices disclosed by vulnerability broker and compared to prices we see on exploit markets.

Exploit Today

<1k111
<2k2
<5k0
<10k0
<25k0
<50k0
<100k0
≥100k0

The 0-day prices do not consider time-relevant factors. The today price does reflect price impacts like disclosure of vulnerability details, alternative exploits, availability of countermeasures. These dynamic aspects might decrease the exploit prices over time. Under certain circumstances this happens very fast.

Exploit Market Volume

Our unique calculation of exploit prices makes it possible to forecast the expected exploit market volume. The calculated prices for all possible 0-day expoits are cumulated for this task. Comparing the volume to the amount of disclosed vulnerabilities helps to pinpoint the most important events.

🔴 CTI Activities

Our unique Cyber Threat Intelligence aims to determine the ongoing research of actors to anticipiate their acitivities. Observing exploit markets on the Darknet, discussions of vulnerabilities on mailinglists, and exchanges on social media makes it possible to identify planned attacks. Monitored actors and activities are classified whether they are offensive or defensive. They are also weighted as some actors are well-known for certain products and technologies. And some of their disclosures might contain more or less details about technical aspects and personal context. The world map highlights active actors in real-time.

Affected Products (15): 7-zip, 7-ZIP32.DLL, 7-zip p7zip, FreeBSD libarchive, Igor Pavlov 7-zip, libarchive, Libarchive, p7zip, Rarlab WinRAR, Rarlab WinRar, RARLAB WinRAR, RarLabs WinRar, WinRar, WinZip, Winzip

PublishedBaseTempVulnerabilityProductExpRemCTICVE
08/24/20226.36.0libarchive Access Control List link followinglibarchiveNot DefinedOfficial Fix0.04CVE-2021-31566
08/24/20226.36.0libarchive Access Control List access controllibarchiveNot DefinedOfficial Fix0.04CVE-2021-23177
05/04/20223.53.5Libarchive lzma_decode information disclosureLibarchiveNot DefinedNot Defined0.00CVE-2022-28066
04/16/20226.35.87-zip Extension access control [False-Positive]7-zipNot DefinedNot Defined0.04CVE-2022-29072
03/29/20224.34.3Libarchive zipx_lzma_alone_init out-of-boundsLibarchiveNot DefinedNot Defined0.04CVE-2022-26280
11/23/20215.65.1Rarlab WinRAR Expiration mshtml.dll injectionWinRARProof-of-ConceptOfficial Fix0.09CVE-2021-35052
07/21/20215.55.3libarchive copy_string use after freelibarchiveNot DefinedNot Defined0.04CVE-2021-36976
10/15/20204.84.8libarchive Archive File archive_string.c archive_string_append_from_wcs out-of-bounds writelibarchiveNot DefinedOfficial Fix0.08CVE-2020-21674
03/10/20206.96.6libarchive LHA Archive archive_read_support_format_lha.c out-of-boundslibarchiveNot DefinedOfficial Fix0.03CVE-2019-20509
02/20/20207.57.2libarchive RAR5 File archive_read_support_format_rar5.c input validationlibarchiveNot DefinedOfficial Fix0.05CVE-2020-9308
11/21/20195.45.4libarchive archive_string.c archive_wstring_append_from_mbs out-of-boundslibarchiveNot DefinedNot Defined0.04CVE-2019-19221
10/24/20197.47.1libarchive archive_read_support_format_rar.c use after freelibarchiveNot DefinedOfficial Fix0.04CVE-2019-18408
04/23/20195.95.9libarchive archive_read_support_format_zip.c archive_read_format_zip_cleanup resource managementlibarchiveNot DefinedNot Defined0.05CVE-2019-11463
02/13/20197.06.7Rarlab WinRar Archive out-of-bounds writeWinRarNot DefinedOfficial Fix0.04CVE-2018-20253
02/05/20197.06.7Rarlab WinRar Archive out-of-bounds writeWinRarNot DefinedOfficial Fix0.04CVE-2018-20252
02/05/20195.95.7Rarlab WinRar ACE Archive UNACEV2.dll validator path traversalWinRarNot DefinedOfficial Fix0.03CVE-2018-20251
02/05/20197.06.3Rarlab WinRar ACE input validationWinRarProof-of-ConceptOfficial Fix0.03CVE-2018-20250
02/04/20195.45.4libarchive archive_read_support_format_iso9660.c parse_rockridge resource consumptionlibarchiveNot DefinedNot Defined0.04CVE-2019-1000020
02/04/20195.45.4libarchive 7zip File archive_read_support_format_7zip.c header_bytes out-of-boundslibarchiveNot DefinedNot Defined0.03CVE-2019-1000019
12/20/20185.45.1libarchive archive_read_support_format_warc.c warc_read double freelibarchiveNot DefinedOfficial Fix0.05CVE-2018-1000880
12/20/20185.45.4libarchive archive_acl.c archive_acl_from_text_l null pointer dereferencelibarchiveNot DefinedNot Defined0.00CVE-2018-1000879
12/20/20187.06.7libarchive RAR Decoder archive_read_support_format_rar.c use after freelibarchiveNot DefinedOfficial Fix0.03CVE-2018-1000878
12/20/20186.56.2libarchive RAR Decoder archive_read_support_format_rar.c parse_codes double freelibarchiveNot DefinedOfficial Fix0.03CVE-2018-1000877
05/02/20187.06.77-zip RAR Decoder memory corruption7-zipNot DefinedOfficial Fix0.03CVE-2018-10115
04/16/20187.57.57-zip Access Restriction LsaAddAccountRights access control7-zipNot DefinedNot Defined0.00CVE-2018-10172

88 more entries are not shown

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