CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.6 | $0-$5k | 0.00 |
A vulnerability was found in SharpZipLib up to 1.3.2 and classified as critical. This issue affects an unknown part. The manipulation of the argument destFolder
with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability.
The weakness was published 01/27/2022 as GHSL-2021-125. The advisory is shared at securitylab.github.com. The identification of this vulnerability is CVE-2021-32840 since 05/12/2021. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.
Upgrading to version 1.3.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch a0e96de70b5264f4c919b09253b1522bc7a221cc is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
Product
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.8VulDB Meta Temp Score: 6.6
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 7.3
CNA Vector (GitHub, Inc.): 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Path traversalCWE: CWE-22
ATT&CK: T1006
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: SharpZipLib 1.3.3
Patch: a0e96de70b5264f4c919b09253b1522bc7a221cc
Timeline
05/12/2021 🔍01/27/2022 🔍
01/27/2022 🔍
01/29/2022 🔍
Sources
Advisory: GHSL-2021-125Status: Confirmed
Confirmation: 🔍
CVE: CVE-2021-32840 (🔍)
Entry
Created: 01/27/2022 10:14Updated: 01/29/2022 12:01
Changes: 01/27/2022 10:14 (52), 01/29/2022 12:01 (2)
Complete: 🔍
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