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New and/or Modified Documentation

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Unified Agent

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Parameter Merging (version

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21.

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4.2)

Beginning in version 20.10.2, this version, nuget.runPreStep and nuget.restoreDependencies will be combined. This works the following way: if nuget.runPreStep = true, then dotnet restore will be performed on found .csproj files. As a result of this merge, nuget.restoreDependencies will be deprecated.

New Unified Agent Documentation (version 20.10.2)

Beginning in version 20.10.2, a modified and updated Unified Agent documentation repository has been launched, with the intent to increase usability, update existing content, fill in missing gaps, and create a linear flow.

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• Previous Versions of the Unified Agent

• Previous GitHub Integration

Features

TeamCity Plugin End-of-Life

The TeamCity plugin will reach its End Of Life starting November 1, 2021. After this date, WhiteSource will no longer provide standard support, including updates and fixes, for the deprecated plugin. Extended Support, which is limited to configuration and Support troubleshooting, will continue until May 1, 2022. Following this date, the TeamCity plugin will no longer be supported by WhiteSource. Please make sure to migrate to the Unified Agent before the end of standard support on November 1, 2021 to maintain full support o

API Version 1.0 and Below

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• CVE-2019-9511 “Data Dribble”: The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both, potentially leading to a denial of service.
  CVSS 3.x Score: 7.5 HIGH

• CVE-2019-9512 “Ping Flood”: The attacker sends continual pings to an HTTP/2 peer, causing the peer to build an internal queue of responses. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both, potentially leading to a denial of service.
  CVSS 3.x Score: 7.5 HIGH

• CVE-2019-9513 “Resource Loop”: The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU, potentially leading to a denial of service.
  CVSS 3.x Score: 7.5 HIGH

• CVE-2019-9514 “Reset Flood”: The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, or both, potentially leading to a denial of service.
  CVSS 3.x Score: 7.5 HIGH

• CVE-2019-9515 “Settings Flood”: The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both, potentially leading to a denial of service.
  CVSS 3.x Score: 7.5 HIGH

• CVE-2019-9516 “0-Length Headers Leak”: The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory, potentially leading to a denial of service.
  CVSS 3.x Score: 7.5 HIGH

• CVE-2019-9517 “Internal Data Buffering”: The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both, potentially leading to a denial of service.
  CVSS 3.x Score: 7.5 HIGH

• CVE-2019-9518 “Empty Frames Flood”: The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU, potentially leading to a denial of service.
  CVSS 3.x Score: 7.5 HIGH

Vulnerable Projects

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