Is CVE-2020-11071 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2020-11071 being exploited in the wild.

How severe is CVE-2020-11071?

Low severity, with a CVSS score of 3.1, published 12 May 2020.

Which products and versions are affected?

slpjs (npm) SEMVER:introduced=0,fixed=0.27.2.

Is there a fix for CVE-2020-11071?

Yes. slpjs (npm): upgrade to 0.27.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2020-11071 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2020-11071?

Check whether you run slpjs (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2020-11071: slpjs false-negative validation in MINT transactions

CVE-2020-11071 · Severity: low · CVSS 3.1 · Published 2020-05-12

slpjs is a JavaScript library used to validate and process Simple Ledger Protocol (SLP) token transactions on the Bitcoin Cash blockchain. A validation flaw in MINT transaction handling could allow poorly-implemented wallets to incorrectly accept transactions with invalid batons, potentially leading to irreversible loss of a user's token minting authority and the destruction of their tokens.

Technologies: slpjs (npm). Vendors: npm.

Quick answers

Is CVE-2020-11071 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2020-11071 being exploited in the wild.
How severe is CVE-2020-11071?: Low severity, with a CVSS score of 3.1, published 12 May 2020.
Which products and versions are affected?: slpjs (npm) SEMVER:introduced=0,fixed=0.27.2.
Is there a fix for CVE-2020-11071?: Yes. slpjs (npm): upgrade to 0.27.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2020-11071 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2020-11071?: Check whether you run slpjs (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

slpjs (npm): upgrade to 0.27.2 or later
```
npm install slpjs@0.27.2
```

Technical details

The vulnerability is an improper input validation (CWE-697) issue in MINT transaction validation logic. The root cause is a false-negative validation check that fails to properly validate the baton field in MINT transactions, allowing invalid batons to pass validation. An attacker (or a poorly-implemented wallet) could craft a MINT transaction with an invalid baton that would be incorrectly validated as legitimate by vulnerable versions of slpjs. This could result in spending of affected tokens and destruction of the user's minting baton. The vulnerability requires no authentication or user interaction beyond wallet usage and is network-reachable to any user of the library. The fix has been patched in slpjs version 0.27.2.

Affected products

Simple Ledger slpjs before 0.27.2

Identifiers

CVE-2020-11071
GHSA-jc83-cpf9-q7c6

Timeline

2020-05-12: disclosed
2020-05-12: patched: Fixed in version 0.27.2

References

https://github.com/simpleledger/slpjs/security/advisories/GHSA-jc83-cpf9-q7c6

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.