Security readout for executives and security teams
This flaw affects PEAR Archive_Tar, a PHP library for unpacking tar archives. A crafted archive filename can use stream-wrapper syntax to bypass incomplete sanitization and write files unexpectedly. The business concern is highest where applications accept or process tar archives from users or less trusted sources. Exposure is most likely in PHP applications, Drupal deployments, and Linux packaged software using Archive_Tar through 1.4.10. The provided source bundle does not enumerate exact affected product versions beyond Archive_Tar and referenced vendor advisories. Treat as high priority, especially on internet-facing or business-critical systems that accept archives. KEV status means remediation should be tracked as a security obligation, not routine maintenance. Mitigation focus: Update Archive_Tar beyond affected versions or apply vendor package updates.; Apply Drupal, Debian, Fedora, or Gentoo advisories where applicable.; Restrict tar archive uploads and extraction from untrusted sources until remediated..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2020-28949 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/pear/Archive_Tar/issues/33CVE reference · x_refsource_MISC
- https://www.drupal.org/sa-core-2020-013CVE reference · x_refsource_CONFIRM
- [debian-lts-announce] 20201127 [SECURITY] [DLA 2466-1] drupal7 security updateCVE reference · mailing-list, x_refsource_MLIST
- FEDORA-2020-f351eb14e3CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-5271a896ffCVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-6f1079934cCVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-d50d74d6f2CVE reference · vendor-advisory, x_refsource_FEDORA
- DSA-4817CVE reference · vendor-advisory, x_refsource_DEBIAN
- GLSA-202101-23CVE reference · vendor-advisory, x_refsource_GENTOO
- FEDORA-2021-8093e197f4CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-0c013f520cCVE reference · vendor-advisory, x_refsource_FEDORA
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-28949CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.