CVE-2020-13579
published 2021-02-04CVE-2020-13579: An exploitable integer overflow vulnerability exists in the PlanMaker document parsing functionality of SoftMaker Office 2021’s PlanMaker application. A…
PriorityP357high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
70.69%
99.4th percentile
An exploitable integer overflow vulnerability exists in the PlanMaker document parsing functionality of SoftMaker Office 2021’s PlanMaker application. A specially crafted document can cause the document parser perform arithmetic that may overflow which can result in an undersized heap allocation. Later when copying data from the file into this allocation, a heap-based buffer overflow will occur which can corrupt memory. These types of memory corruptions can allow for code execution under the context of the application. An attacker can entice the victim to open a document to trigger this vulnerability.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| softmaker | planmaker_2021 | — | — |
Detection & IOCsextracted from sources · hover to see the quote
snort↗
56209
snort↗
55210
snort↗
56212
snort↗
56213
snort↗
56226
snort↗
56227
snort↗
56228
snort↗
56229
- →CVE-2020-13579 is triggered by document records 0x8011 and 0x820a in PlanMaker's native format; monitor for parsing of these specific record types in PlanMaker documents. ↗
- →The vulnerability results in a heap-based buffer overflow during document parsing; heap corruption telemetry or crash dumps from PlanMaker.exe opening untrusted documents should be investigated. ↗
- →Delivery vector is a specially crafted PlanMaker document; alert on PlanMaker opening documents from untrusted/external sources (email attachments, downloads). ↗
- ·Snort rule numbers listed include rules covering multiple CVEs in the same advisory (CVE-2020-13579 through CVE-2020-13586); not all rules map exclusively to CVE-2020-13579. ↗
- ·Confirmed affected version is SoftMaker Office PlanMaker 2021 Revision 1014 only; other revisions were not tested. ↗
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
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Talos
Vulnerability Spotlight: Multiple vulnerabilities in SoftMaker Office PlanMaker
blogs_talos·2021-02-03·CVSS 7.8
[HIGH] Vulnerability Spotlight: Multiple vulnerabilities in SoftMaker Office PlanMaker
Discovered by a Cisco Talos researcher. Blog by Jon Munshaw.
SoftMaker's Office PlanMaker contains multiple vulnerabilities that could allow an adversary to cause a variety of malicious conditions in the software. SoftMaker's flagship product, SoftMaker Office, is supported on a variety of platforms and contains a handful of components that allows the user to write text documents, create spreadsheets, design presentations and more. The SoftMaker Office suite supports a variety of common office file formats, as well as other internal formats that the user may choose to use when performing their necessary work. These vulnerabilities all exist in the PlanMaker component of the suite, which allows users to create and edit spreadsheets.In accordance with our coordinated disclosure policy, Cisc
Talos
Vulnerability Spotlight: Multiple vulnerabilities in SoftMaker Office PlanMaker
blogs_talos·2021-02-03·CVSS 7.8
[HIGH] Vulnerability Spotlight: Multiple vulnerabilities in SoftMaker Office PlanMaker
## Vulnerability Spotlight: Multiple vulnerabilities in SoftMaker Office PlanMaker
Discovered by a Cisco Talos researcher. Blog by Jon Munshaw.
SoftMaker's Office PlanMaker contains multiple vulnerabilities that could allow an adversary to cause a variety of malicious conditions in the software. SoftMaker's flagship product, SoftMaker Office, is supported on a variety of platforms and contains a handful of components that allows the user to write text documents, create spreadsheets, design presentations and more. The SoftMaker Office suite supports a variety of common office file formats, as well as other internal formats that the user may choose to use when performing their necessary work. These vulnerabilities all exist in the PlanMaker component of the suite, which allows users to cre
2021-02-04
Published